Question

If the net force acting on an object kept in a lift which is accelerating is not zero...then the object is in which motion?

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Answer 1

Explanation:

Second law of Newton states that net force on a body is directly proportional to the rate of change momentum , which gives

F=dp/dt=mdv/dt

as F is non-zero , it means dv is also non-zero ,therefore velocity is changing i.e. object is accelerating.