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Third Law of Motion

If the tensio...

Question

If the tension in the cable supporting an elevator is equal to the weight of the elevator, the elevator may be

A

Going up with increasing speed

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B

Going down with increasing speed

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C

Going up with uniform speed

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D

Going down with uniform speed

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Solution

The correct options are
C Going up with uniform speed
D Going down with uniform speed
If the tension in the cable of the elevator is the same as the weight of the elevator, it means that the net force on the system is zero. Therefore, the net acceleration of the system will also be zero.

This means that the elevator is moving up or down with uniform speed.
Option $C & D$ are correct.

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