What is the Acceleration of a 2442 kg Elevator Moving Upward?

In summary, while an elevator of mass 2442 kg moves upward, the tension in the cable is 34.2 kN. We are asked to find the acceleration of the elevator, which can be calculated using the formula a = F/m. By summing up the forces, we can solve for the acceleration, with the force pulling up being equal to 34200 - 23956.
  • #1
Abb
4
0

Homework Statement



While an elevator of mass 2442 kg moves upward, the tension in the cable is 34.2 kN

Homework Equations



(a) What is the ?
(a) What is the acceleration of the elevator?

The Attempt at a Solution


a= f/m
a= 34200N/2442kg =14.0
 
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  • #2
Why is this posted twice?

relevant equations: what is the ?
what is the acceleration of the elevator?

what does this mean?

If you just want to solve for acceleration, First sum up all of the forces.

You have the motor pulling the elevator up, and gravity pulling it down.
The net force = 34.2 KN,
The force on account of gravity = ma = 2442 * 9.81 = 23956N
Therefore, the force pulling up = 34200 - 23956
You can solve it from here.
 
  • #3
Thank. and sorry i thought firs time it didnt go through
 
  • #4
Welcome to PF!

Hi Abb! Welcome to PF! :smile:
Abb said:
Thank. and sorry i thought firs time it didnt go through

Yup, that happens sometimes :redface:

depends on what mood the server is in … :biggrin:
 

Related to What is the Acceleration of a 2442 kg Elevator Moving Upward?

What is acceleration of the elevator?

The acceleration of the elevator is the rate of change of its velocity over time. It is measured in meters per second squared (m/s²).

How is acceleration of the elevator calculated?

The acceleration of the elevator can be calculated by dividing the change in velocity by the change in time. The formula for acceleration is a = (vf - vi) / t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.

What factors affect the acceleration of the elevator?

The acceleration of the elevator can be affected by several factors, including the weight of the elevator, the number of passengers, the power of the motor, and the friction between the elevator and the shaft.

Why is the acceleration of the elevator important?

The acceleration of the elevator is important because it determines the speed at which the elevator moves and how quickly it can reach a desired floor. It also affects the comfort and safety of the passengers.

Can the acceleration of the elevator be negative?

Yes, the acceleration of the elevator can be negative if the elevator is slowing down. This is known as deceleration or negative acceleration. It can occur when the elevator reaches its desired floor and starts to slow down before coming to a stop.

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