A ball after freely falling from a height of 4.9 m, hits a horizontal surface. If e=3/4, Then the ball will hit the surface, second time after ; a} 1sec b} 1.5sec c}2sec d}3sec
A ball after freely falling from a height of 4.9 m, hits a horizontal surface. If e=3/4, Then the ball will hit the surface, second time after ; a} 1sec b} 1.5sec c}2sec d}3sec