Question

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 1

Answer:

According to me it was mass*velocity= 0.15*54 = 8.1 N s

Explanation:

Given mass: 0.15kg

velocity: 54m/s

since impulse (I)= force * time

and we know that rate of change of momentum is proportional to the force (Newton second law)

therefore, I = force* time= [(mass*velocity)/t]* t

from where t cancel out and we get

=> Impulse= mass * velocity

=> I= 0.15 kg * 54 m/s

=> I= 8.1 Newton second {Answer}