Show that the speed with which a projectile leaves the ground is equal to its speed just before it strikes the ground at the end of its journey, assuming the firing level equals the landing level.

Step1:In this question, we have a ball rolling down a horizontal plane with speed of 1.25m/s, this ball roll off a bench which is above 1.0 m from the floorIn the first part we need find the time taken by the ball to hit the floorIn the second part we need to find the distance at which ball lands from the edge ofthe bench