A body is kept on the floor of a topless lift at rest. The lift starts descending at an acceleration 'a' then
A) If a > g, the displacement of the body in a time 't' is ` 1/2 g t^2`w.r.t ground.
B) If a < g, the displacement of the body in a time 't' is `1/2 a t^2`w.t ground. 

Options

A. Both A & B are true
B. A is true & B is false
C. A is false & B is true
D. Both A & B are false

Answer

A