A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of 12 m`cdot s^(-1)`. If the mass of the ball is 0.15 kg, determine the impulse imparted to the ball.(Assume linear motion of the ball )

Explanation

Thus impulse is imparted towards the bowler from the position of the bastman. If that direction is taken to be positive, then
the initial velocity of the ball = - 12 m`cdot s^(-1)`
the final velocity of the ball = + 12 `m cdot s^(-1)`
So, the impulse = change in momentum
= mass `xx` change in velocity
= `0.15 xx { 12 - ( -12) = 0.15 xx 24`
= 3.6 kg `m cdot s^(-1)`