1.

A cricket ball of mass 150 gm is moving with a velocity of 12 m/s and is hit by a bat so that the ball is turnedback with a velocity of 20 m/s. The force of blow acts for 0.01s on the ball. The average force exerted by thebat on the bail is(a) 480 N(b) 600 N(c) 500 N(d) 400 N

Answer»

Mass of the ball, m = 150 g = 0.15 kg

Initial speed of the ball, u = -12 m/s

Final speed of the bal after being hit, v = 20 m/s

Impulse = change in momentum = final momentum initial momentum

= Impulse = 0.15 × 20 0.15 × (-12) = 4.8 Ns



Discussion

No Comment Found

Related InterviewSolutions