Question

A person is standing in an elevator. In which situation, he finds himself weightless ?

(a) Elevator is going up with constant speed.

(b) Elevator is moving down with constant speed.

(c) Elevator is accelerating up with g.

(d) Elevator is accelerating down with g.

Answer 1

Correct option (d) Elevator is accelerating down with g.

Explanation :

When elevator moves downward with constant acceleration. a = g. Then person standing in an elevator and himself weightless. (q' with respect to the lift is (g - a)).