Question

A ping pong ball is thrown vertically upward and returns to its starting point after 4 . Calculate the (i) initial speed of the ball

Answer 1

u=19.6m/s

Step-by-step explanation:

Since the starting and the ending point for the trip are the same, so the displacement is zero

0=u(4)−12(9.8)(4)2→u=19.6m/s.