Question

A person is standing in an elevator. In which situation he finds his weight less ?
A. When the elevator moves upward with contant acceleration
B. When the elevator moves upward with uniform velocity
C. When the elevator moves downward with contant acceleration
D. When the elevator moves downward with uniform velocity

Answer 1

Correct Answer - C
When elevator is moving downward with constant accleration i.e., when resultant acceleration is downward them
`W=m(g-a)`
is the resultant weight, which is less than the original weight `mg` . Therefore, person finds his weihtless.