A cricket ball of mass 150.0 g is moving with a velocity of 12.0 ms - 1 and is hit by a bat so that the ball is turned back with a velocity of 20.0 ms - 1 . The force of the blow acts for 0.01 s . Find the average force exerted on the ball by the bat .
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Answer:
Mass of Cricket Ball = 150 g
= 150/1000 kg
= 0.15 kg
Initial Velocity (u) = 12 m/s
Final Velocity (v) = 20 m/s
Time (t) = 0.01 s
Acceleration (a) = (v-u)/t
= (20-12)/0.01 m/s²
= 800 m/s²
Average Force = Mass*Acceleration
= 0.15*800 N
= 120 N
I hope this helps.
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