A boy throws a ball with speed `u` in a well of depth `14  m` as shown in (Fig. 5.191). On bounce
Channel: Doubtnut
Date: 2020-07-26

A boy throws a ball with speed `u` in a well of depth `14  m` as shown in (Fig. 5.191). On bounce with the bottom of the well, the speed of the ball gets halved. What should be thw minimum value of `u( "in" ms^-1)` such that the ball may be able to reach his hands again ? It is given that his hands are at `1 m` height from top of the well while throwing and catching.