A ball of mass 50g is dropped from a height of 20m. A boy on the ground hits the ball with an average force of 200N, so that it attains a vertical height of 45m. The time for which the ball remains in contact with the bat is (g=10m/s^2)A)1/20th ofa second B)1/40th of a secondC)1/80th of a secondD)1/120th of a second
A ball of mass 50g is dropped from a height of 20m. A boy on the ground hits the ball with an average force of 200N, so that it attains a vertical height of 45m. The time for which the ball remains in contact with the bat is (g=10m/s^2)
A)1/20th ofa second
B)1/40th of a second
C)1/80th of a second
D)1/120th of a second