Question

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

(a) When the elevator moves upward with constant acceleration

(b) When the elevator moves downward with constant acceleration

(c) When the elevator moves upward with uniform velocity

(d) When the elevator moves downward, with uniform velocity

Answer 1

The correct choice is (b) When the elevator moves downward with constant acceleration

The best I can explain: When the elevator moves downward with acceleration a, the apparent weight, W^‘=m(g-a) is lesser than W(=mg).