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Q. 75.0( 2 Votes )

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

B. going down with increasing speed

C. going up with uniform speed

D. going down with uniform speed

Class 11th HC Verma - Concepts of Physics Part 1 5. Newton’s Laws of Motion

Answer :

If the weight of the elevator is equal to the tension in the string, then the net acceleration of elevator is zero and thus the elevator can either be at rest or moving up and down with constant velocity.

Thus, option C and D are correct.

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