Displacement-time graph of a body projected vertically up is

Velocity-time graph of a body thrown vertically up is

Velocity-time curve for a body projected vertically upwards is

Velocity-time curve for a body projected vertically upwards is with times (s)

Velocity-time curve for a body projected vertically upwards is with times (s)

Find the time taken, by the body projected vertically up with a speed of u, to return back to the ground.

Find the time taken, by the body projected vertically up with a speed of u, to return back to the ground.