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The tension in the cable of a 1500 kg li...

The tension in the cable of a 1500 kg lift is 1500 kg-wt This implies that the lift

A

is accelerating upwards

B

is accelerating downwards

C

may be at rest or accelerating

D

may be at rest or in uniform motion

Text Solution

Verified by Experts

The correct Answer is:
D
`because T=mg`, the acceleration of the lift is zero i.e., it may be at rest or is moving with uniform velocity. If the lift is moving upwards or downwards with an acceleration, then `T= m(g pm a)` and not mg.
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