9. Calcule el valor de la fuerza que experimenta un ascensor cuando levanta 150 kg en los siguientes casos: a) Cuando asciende con una aceleración de 4 m/s2 b) Cuando asciende con una aceleración de 6 m/s2 c) Explique: ¿Por qué el ascensor experimenta diferentes aceleraciones si levanta el mismo peso en ambos casos?

Answers

Answer 1

Answer:

a) La fuerza neta que experimenta un ascensor cuando asciende con una aceleración de 4 metros por segundo al cuadrado es 600 newtons hacia arriba.

b) La fuerza neta que experimenta un ascensor cuando desciende con una aceleración de 6 metros por segundo al cuadrado es 900 newtons hacia abajo.

c) Por la fuerza de tensión sobre el cable del ascensor.

Step-by-step explanation:

a) La fuerza neta experimentada por el ascensor ([tex]F[/tex]), en newtons, es:

[tex]F = m\cdot a[/tex] (1)

Donde:

[tex]m[/tex] - Masa, en kilogramos.

[tex]a[/tex] - Aceleración, en metros por segundo cuadrado.

Si sabemos que [tex]m = 150\,kg[/tex] y [tex]a = 4\,\frac{m}{s^{2}}[/tex], entonces la fuerza neta del ascensor es:

[tex]F = m\cdot a[/tex]

[tex]F = 600\,N[/tex]

La fuerza neta que experimenta un ascensor cuando asciende con una aceleración de 4 metros por segundo al cuadrado es 600 newtons hacia arriba.

b) Si sabemos que [tex]m = 150\,kg[/tex] y [tex]a = -6\,\frac{m}{s^{2}}[/tex], entonces la fuerza neta del ascensor es:

[tex]F = m\cdot a[/tex]

[tex]F = -900\,N[/tex]

La fuerza neta que experimenta un ascensor cuando desciende con una aceleración de 6 metros por segundo al cuadrado es 900 newtons hacia abajo.

c) De manera simplificada, el ascensor experimenta dos fuerzas que definen la fuerza y aceleración netas: (i) La fuerza de tensión sobre el cable que traslada el ascensor y el peso total del ascensor, opuesta a la anterior y en función de la aceleración gravitacional. Puesto que la masa no varía en ningún caso, se concluye que el peso es constante, entonces la diferencia de valores se debe a la fuerza por tensión del cable. En el descenso, es fuerza es menor que en el ascenso.


Related Questions

Simultaneous Equations - 5p-2q=9 3p+2q=7

Answers

Apnswer:

p = 1

q = -2

Step-by-step explanation:

5p - 2q = 9   eqn 1

3p + 2q = 7    eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2

Julio bought a backpack for $40. The sales tax on his purchase was 6%. How much did Julio do the backpack cost, Julio, including tax

Answers

42.60
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What is 7.37 as a fraction

Answers

Answer:

737/100

Step-by-step explanation:


Two intersecting segments form the diagonals of a quadrilateral. What additional information do you need to
know about the diagonals to prove that the quadrilateral is a parallelogram?

a.they must be perpendicular

b.they must bisect each other

c.they must intersect in the center of the quadrilateral

d.they must be congruent

Answers

Answer:

B. They must bisect each other

Step-by-step explanation:

Found the answer on quizziz

Find the value of x in the picture below.



Answers

The answer is c because

Marius combined 4/8 gallon of lemonade, 3/8 gallon of cranberry juice, and 6/8 gallon of soda water to make punch for a party. How many gallons of punch did he make in all?

Answers

13/8, which you can also write as 1 5/8

11. Given isosceles trapezoid ABCD with bases 6 and 16 and legs 13.
16
Find the height
17 Find the area

Answers

Answer:

round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

What is the area of this figure?

Drag and drop the appropriate number into the box.

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is

round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Select from the drop-down menu to correctly complete the statement.

The area of the figure is Choose...128136153258 in².

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

Drag and drop the appropriate number into the box.

A = 

What is the area of this figure?

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A = 

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What is the area of this figure?

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The area of the figure is

round window has a radius of 18 inches. what is the circumference and approximate qrea of the window circumference What is the area of this figure?

Enter your answer as a decimal in the box.

  cm²

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:

c

basically you add male (x) and female (y) together and get 127, there are 23 more male athletes (x) so to get the same amount of make and female you need to add 23 to female (y) so the answer will be c.

Help! Best answer gets brainliest

Answers

Answer:

7.9

Step-by-step explanation:

the first thing to do is find the second projection.

16-7 = 9

than we can use a proportion to find BD

7 : BD = BD : 9

BD = √9 x 7 = √63 = 7.9

we have to use the square root because in the proportion BD Is repeated two times. If we don’t use it, we find BD^2

If 20 machines produce 1,240 printers in a day,
how many more machines are needed to produce
1,984 printers in a day?

Answers

Division is one of the four fundamental arithmetic operations. The number of machines that will be needed to produce 1,984 printers in a day is 32 machines.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that 20 machines produce 1,240 printers in a day. Therefore, the rate of production for a single machine can be written as,

Rate of production for a day = 1240/20 = 62 printer per machine

Now, the number of machines that will be needed to produce 1,984 printers in a day is,

Rate of production for a day = 1,984 / Number of machine

62 = 1984 / Number of machine

Number of machines = 32 machines

Hence, the number of machines that will be needed to produce 1,984 printers in a day is 32 machines.

Learn more about Division:

https://brainly.com/question/369266

#SPJ2

Reggie deposited $1200 into an account that earns 5% compound interest yearly if he does not deposit any more to the account or take any money out of the account how much interest will Reggie earn on his investment at the end of four years round your answer to the nearest whole number

Answers

Answer:

$1,440

Step-by-step explanation:

1,200 / 10 = 120. 120 is 10%. So this means that 5% is $60. 60 x 4 = 240.

1,200 + 240 = 1,440

PLEASE HELP ME ASAP ​

Answers

Answer: -2

Step-by-step explanation: add all of the answers together to get -18. Then, divide by the total amount of numbers, 9 numbers in total. -18/9=-2

Answer:

2.111...

Step-by-step explanation: add the numbers altogether and divide by how many number you added

A three-dimensional figure has a volume of 314 cubic centimeters rounded to the nearest cubic centimeter. Select whether each shape below, with dimensions given in centimeters (cm), matches this three-dimensional figure.


A sphere with a radius of 4.217 cm (true or false)

A sphere with a diameter of 4.217 cm (true or false)

A cone with a radius of 10 cm and a height of 3 cm(true or false)

A cylinder with a radius of 1 cm and a height of 10 cm(true or false)

A cylinder with a radius of 4.47 cm and a height of 5 cm(true or false)

Answers

Answer:

The first one and the third one are true and the rest are false

Step-by-step explanation:

Answer:

first and therd are right

Step-by-step explanation:

y=225(1.23)^2
growth or decay

Answers

Answer:

Growth

Step-by-step explanation:

You can simply look at this and say that this is growth because the number in the parenthesis is greater than 1.00.

It would only be decay if the parenthesis^2 resulted in a number less than 1

Growth because the number in the parenthesis is greater than 1.

You get a brand new car for your 16th birthday, valued at $25,875. Each year you
own the car it decreases in value by 15%. How much will the car be worth when you
turn 21?

Answers

Answer: $25,875 - 15% = 21 993.75  0r $25,875 + 15% = 29 756.25

Step-by-step explanation:

A quadrilateral has vertices at (1.4).
(7,3), (3, -5), and (8,4). The
quadrilateral is dilated by a scale
factor of 3.5 with the origin as its
center. What are the coordinates of
the vertices of the image of the
quadrilateral?

Answers

Given:

A quadrilateral has vertices at (1,4), (7,3), (3, -5), and (8,4).

The quadrilateral is dilated by a scale factor of 3.5 with the origin as its center.

To find:

The coordinates of the vertices of the image of the quadrilateral.

Solution:

If a figure is dilated by a scale factor k with origin as it center, then

[tex](x,y)\to (kx,ky)[/tex]

It is given that the quadrilateral is dilated by a scale factor of 3.5 with the origin as its center. So, the rule of dilation is

[tex](x,y)\to (3.5x,3.5y)[/tex]

Using this rule, we get

[tex](1,4)\to (3.5(1),3.5(4))[/tex]

[tex](1,4)\to (3.5,14)[/tex]

Similarly,

[tex](7,3)\to (3.5(7),3.5(3))[/tex]

[tex](7,3)\to (24.5,10.5)[/tex]

[tex](3,-5)\to (3.5(3),3.5(-5))[/tex]

[tex](3,-5)\to (10.5,-17.5)[/tex]

And,

[tex](8,4)\to (3.5(8),3.5(4))[/tex]

[tex](8,4)\to (28,14)[/tex]

Therefore, the coordinates of the vertices of the image of the quadrilateral are (3.5,14), (24.5,10.5), (10.5,-17.5), (28,14).

When heat energy is increased for a substance the ______?

HELP!!

Answers

Answer:

molecules speed up

Step-by-step explanation:

temperature has a strong affect of the movement of molecules

Reason corp just issued a series of 24 year maturity bonds with a oar value of 1000 and a 5 % coupon, paid semianually the bonds can sell in the open market for 1175. Flotation costs on the new bonds

Answers

Answer:

the rate is 4.36%

Step-by-step explanation:

The computation of the pre tax cost of debt is shown below:

Given that

NPER = 24 × 2 = 48

FV = $1,000

PMT = $1,000 ×5% ÷ 2 = $25

FV = $1,175 - $80

= $1,095

The formula is shown below:

= RATE(NPER;PMT;-PV;FV;TYP

After applying the above formula, the rate is 4.36%

9x -5y = 16
-3x + 7y = 16


-4x - 2y = 14
10x - 7y = 25

Answers

ihivigivivvivivuvicugugovos

Evaluate the expression for x=-2 and y=9.
xy + y =

Answers

Answer:

-18 + 9 = -9

Step-by-step explanation:

-2 x 9 = -18

Complete the square to find the vertex of this parabola. Please help will mark brainliest!

Answers

The vertex is (4, -20)

Greatest common factor of 112 and 63

Answers

Answer:

It's 7!

Step-by-step explanation:

4y^2+20y+25
Factor the polynomial completely

Answers

Answer:

(2y+5)^5

Step-by-step explanation:

Use the "PERFECT SQUARE RULE"

Alicia’s family wants to save for a four-year college education for her. After some research, they estimate that the total cost will be about $78,000. How much should her family save if she is 12 years old and plans to go to college in 6 years?
Select one:

$6,500 each month

$1,100 each month

$4,350 each month

$550 each month

Answers

Answer:

Step-by-step explanation:

$1,100

What is the area of the triangle?
2

Answers

Answer:

the asnwer is 36!

Step-by-step explanation:

Answer:

the area of triangle is

Step-by-step explanation:

A=h{b}  b

2=2·6

2=6

Select all relations that represent a function.
A.
{(–4, 3),(–2, 4),(0, 1),(–4, –1)}


B.
{(5, 7),(2, 7),(9, 7),(8, 0)}


C.
{(3, 11),(–4, 5),(3, –1),(0, 0)}


D.
{(8, 0),(1, 4),(9, 4),(7, 8)}


E.
{(–5, 4),(–4, 3),(–3, 2),(–2, 1)}


F.
{(0, 0),(–1, 3),(–1, –1),(0, 5)}

Answers

Answer:

Hi! The answer to your question is B, D, and E

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

Answer:

D

Step-by-step explanation:

because the other answers do not have a function A,B,C,E, and f are not a function because the numbers are repeating in the same axis

help please. i really need to pass​

Answers

Answer:

Number of year, when final value is $61,412.50 = 3 year

Number of year, when final value is $20,000 = 10 year (Approx.)

Step-by-step explanation:

Given:

Depreciation model

y = 100,000[0.85]ˣ

Where x = Number of year

Find:

Number of year, when final value is $61,412.50

Number of year, when final value is $20,000

Computation:

Depreciation model

y = 100,000[0.85]ˣ

61,412.50 = 100,000[0.85]ˣ

0.614125 = [0.85]ˣ

x = 3

Number of year, when final value is $61,412.50 = 3 year

Depreciation model

y = 100,000[0.85]ˣ

20,000 = 100,000[0.85]ˣ

0.2 = [0.85]ˣ

x = 10 (Approx.)

Number of year, when final value is $20,000 = 10 year (Approx.)

X=-b +b squared -4ac
2a

Answers

Answer:

if you go to Khan Academy they put their lessons into video and thoroughly explain everything!

Step-by-step explanation:

Hope that this helps! :)

Have a great rest of your day/night!

Please thank me on my profile if this answer has helped you!

Elijah is going to invest in an account paying an interest rate of 5.5% compounded continuously. How much would Elijah need to invest, to the nearest hundred dollars, for the value of the account to reach $1,400 in 16 years?

Answers

Answer:

600

Step-by-step explanation:

yw

pls help will give a lot of points!!!!​

Answers

Answer:

This one i wrote down too

Step-by-step explanation:

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