A ball of mass 400 gm is dropped from a height of 5m . A boy on the ground hits the ball vertically upwards with a bat with an average force of 100N so that it attains a vertical height of 20m . Find the time for which the ball remains in contact with the bat

A ball of mass 400 gm is dropped from a height of 5m . A boy on the gr

1.	A ball of mass 400 gm is dropped from a height of 5m . A boy on the ground hits the ball vertically upwards with a bat with an average force of 100N so that it attains a vertical height of 20m . Find the time for which the ball remains in contact with the bat
Answer» ANSWER :`0.12 s`