A man observes that if the length of the barrel of the rifle is cut by 2 cm, the velocity of bullet is reduced from 4 ms–1 to 3 ms–1. If the bullet weighs 25 g, then what is the force acting on the bullet ?

Q: A man observes that if the length of the barrel of the rifle is cut by 2 cm, the velocity of bullet is reduced from 4 ms–1 to 3 ms–1. If the bullet weighs 25 g, then what is the force acting on the bullet ?

(a) 4.475 N

(b) 4.375 N

(c) 4.575 N

(d) 4.275 N