A ball of mass 50 g is dropped from a height of 20 m A boy

Last updated: 5/31/2023

A ball of mass 50 g is dropped from a height of 20 m A boy on the ground hits the ball vertically upwards with a bat with an average force of 200 N so that it attains a vertical height of 45 m The time for which the ball remains in contact with the bat is Take g 10 m s 1 1 20th of a second 2 1 40th of a second 3 1 80th of a second 4 1 120th of a second