Question

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

Answer 1

Here, ` u= 12 ms^(-1) , upsilon = -12 ms^(-1)` ,
`m= 0.5 kg` , Impulse = ?
As Impulse = Change in linear momentum `:.` Impulse `= m (upsilon - u) = 0.15 (-12 - 12)`
`= -3.6 Ns`
Negative sigh shown that impulse is along negative x - axis , i.e., from the batsman to the bowler.