A lift is moving down with an acceleration a. A man in the lift drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift, and a man standing stationary on the ground are, respectively.

Options

A. `g,g`
B. `a,a`
C. `(g-a),g`
D. `a,g`

Answer

c

Explanation

When droped acceleration of the ball is g as will be observed by a man standing stationary on the ground The man inside the lift is having its own downward acc =a Therefore relative acc of the ball as observed by the man in the lift (g-a).