Explain how to use psedo force in a lift
Pseudo force is applied to the non-inertial frame of reference , it means that frame of reference subjected to acceleration. Let the lift is getting accelerated. if we consider a person standing outside lift and watching an accelerating lift, he infers that a force is exerted on the lift and it is accelerating. Here there is no problem and the pseudo force concept is not required
But, if the person inside the accelerating lift is looking at the person standing outside the lift, he finds that the person is accelerating with respect to the lift, though no force is acting on him. Here, the concept of pseudo force is required to convert the non-inertial frame of reference to an equivalent inertial frame of reference.
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