A cricket ball of mass 100 g moving with a speed of 20 `ms^(-1)` is brought to rest by a player . Find the change in momentum of ball.

Explanation

Mass `= 100 g= 0.1 kg `,
Initial speed u = `20 ms^(-1)`
Final velocity v=0
Change in momentum = ?
mv-mu=`0.1 xx 0-(0.1 xx 20)`
Change in momentum =-2 kg ` ms^(-1)` n