A batsman deflects a ball by an angle of 45^@without changing its initial speed which is equal to 54 km/h.What is the impulse imparted to the ball ?(Mass of the ball is 0.15 kg.)

A batsman deflects a ball by an angle of 45^@without changing its init

1.	A batsman deflects a ball by an angle of 45^@without changing its initial speed which is equal to 54 km/h.What is the impulse imparted to the ball ?(Mass of the ball is 0.15 kg.)
Answer» Solution : Impulse is DIRECTED along the bisector of the INITIAL and final directions.Its MAGNITUDE is ` 0.15 xx 2 xx 15 xx cos 22.5^@= 4.2 KG ms^(-1)`