Question

if a body is dropped in an elevator, and that elevator is moving upward with a constant velocity "v". find the time taken by body to reach the floor of elevator.​

Answer 1

Explanation:

displacement of body wrt to lift =-h

relative acceleration of body wrt to lift =-g

relative velocity = -v

Srel=Urelt+1/2ArelT^2

-h=-vt-1/2gt^2

solving u get t

solving by ground

displacement of lift -displacement of body = h

vt+1/2gt^2 =h