A person is a playing a game that requires throwing an object onto a ledge. The ledge is at a distance `d` and a height `d//2` above the point `O`. You may neglect air resistance. Once the object reaches the ledge it slows down with constant deceleration and comes to stop after sliding a distance `'s'`. Object velocity becomes horizontal when it reaches the ledge. Which of the following statements is/are correct?

Options

A. Initial vertical component of velocity is `sqrt(gd)`
B. Time of motion on the ledge is `(2s)/(sqrt(gd))`
C. Initial vertical component of velocity is `2sqrt(gd)`
D. Total time of motion is `sqrt(d/g)+(2s)/(sqrt(gd))`

Answer

A, B, D