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27 Nov 2019

An elevator and its load have a combined mass o 1600kg. Find the tension in the supporting cable when the elevator, originally moving downward at 12 m/s, is brought to rest with constant acceleration in a distance of 42 m.

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Irving Heathcote
Irving HeathcoteLv2
5 Mar 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

You are conducting an experiment inside an elevator that can movein a vertical shaft. A load is hung vertically from the ceiling ona string, and is stationary with respect to you. The tension in thestring is measured to be 10% less than the weight of the load. Noother forces are acting on the load. Which of the followingstatements about the elevator are correct?
Check all that apply.

The elevator is an inertial frame of reference.
The elevator is not an inertial frame of reference.
The elevator may be at rest for the duration of the entireexperiment.
The elevator may be moving at a constant velocity upward.
The elevator may be moving at a constant velocity downward.
The elevator must be accelerating.

16-18 An elevator car is suspended by a single steel cable. The carhas a mass of 520 kg and it contains a passenger whose mass is 80kg. The mass of the cable can be ignored. 16. If the elevator istraveling vertically downwards at a constant speed of 2.00 m/s,calculate the tension in the cable.

17. If the elevator is accelerating downwards with a constantacceleration of magnitude 1.00 m/s2, calculate the tension in thecable.

18. If the maximum tension that the cable can safely withstand is9000 (N), and the maximum upward
acceleration of the elevator is 1.00 m/s2, how many 80 kgpassengers may be safely carried in the elevator?

An elevator cab of mass m= 250 kg is descending with an intialvelcioty of 2.0 m/s when its supporting cable begins to slip,allowing it to fall with constant acceleration a = g/10.

a) During the fall through the distance d = 24 m, what is the workW done on the cab by gravitional force F?

b) During the 24 m fall, what is the W done on the cab by the upwadpull T of the elevator cable?

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