A body is projected vertically up with speed u takes time T to reach maximum height H. Pick out correct statement

Options

A. It reaches H/2 distance in a time T/2
B. It has speed u at time T/2
C. It has speed u/2 at the height H/2
D. It has the same velocity at titrte 2T

Explanation

`x=2t^2+t+5`
Velocity,`v=dx/dt=d/dt(2t^2+t+5)=4t+1`
"Acceleration",`a=(dv)/dt=d\dt(4t+1)=4m//s^2`