While an elevator of mass 2620 kg moves upward, the tension in the cable is 48.9 kN. Assume the elevator is supported by a single cable. Forces exerted by the guide rails and air resistance are negligible. What is the acceleration of the elevator? If the acceleration is in upward direction, enter a positive value and if the acceleration is in downward direction, enter a negative value. If at some point in the motion the velocity of the elevator is 1.20 m/s upward, what is the upward velocity of the elevator 4.00 s later?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 57P: Two objects, A and B, are connected by a rigid rod that has a length L. The objects slide along...
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While an elevator of mass 2620 kg moves upward, the tension in the cable is 48.9 kN. Assume the elevator is supported by a single cable. Forces exerted by the guide rails and air resistance are negligible.

What is the acceleration of the elevator? If the acceleration is in upward direction, enter a positive value and if the acceleration is in downward direction, enter a negative value.

If at some point in the motion the velocity of the elevator is 1.20 m/s upward, what is the upward velocity of the elevator 4.00 s later?

 

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