Question

a cricket ball of mass 150 grams moving at a speed of 25 metre per second is brought to rest by a player in zero. 0 3 seconds. find the average force applied by the player​

Answer 1

Answer :

Step by step explanation :

Mass of ball = 150g = 0.15 kg

Initial velocity = 30 m/s

Time = 0.3 secs

Final velocity = 0

Initial momentum = mu

0.15 × 30 = 4.5 kg m/s

Final momentum = mv = 0

Change in momentum = mv-mu

0-4.5 = -4. 5 kg m/s

Average Force = change in momentum/ time

-4. 5/0.3

= -15 N