A tennis ball has a mass of `56.7 gm` and is served by a player with speed of `180 kmph`. The work done in serving the ball is nearly

A player kicks a ball of mass 250g at the centre of a field. The ball haves his foot with a speed of 10m//s Find the work done by the player on the ball.

A ball of mass m moves with speed v and stricks a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

A ball of mass m moves with speed v and stricks a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

An iron ball has a mass of 35gms and a speed of 50m/s. If the speed can be measured with in accuracy of 2% then the uncertainty in the position

Two billiard balls of equal mass 30 g strike a rigid wall with same speed of 108 kmph (as shown) but at different angles. If the balls get reflected with the same speed then the ratio of the magnitude of impulses imparted to ball 'a' and ball 'b' by the wall along 'X' direction is

The tennis ball may leave the racket of a top player on the serve with a speed of 65 m/s If mass of the ball is 0.06 kg and is in bontact with the racket for 0.03 sec, what the average force n the ball ?

A tennis ball of mass 6.0 (10 *-2) kg is moving with a speed of 62ms-1 . Calculate the wavelength associated with this moving tennis ball.

A cricket player draws his hands backwards through 10 cm while catching a ball of mass 150 g moving with a velocity of 25 ,ms^(-1) . Calculate the work done in catching the ball and the average force exerted by the ball on the hand .