Q

A 12 g bullet takes 0.006 s to travel through a rifle barrel and leaves at 300 m/s. What average force does the rifle exert on it?

RRB Group D 25/09/2018 / Shift-I 2018
✓ Answer: D 600 N
Assuming the bullet starts from rest, F = mΔv/Δt = 0.012 × 300/0.006 = 600 N.
← Previous Question Next Question →

📚 Related Questions — Mechanics

1 Which of the following is NOT a function of a simple machine? 2 A 30 kg object moves uniformly at 5 m/s. Find its kinetic… 3 A worker has to raise a heavy load to a certain height…. 4 Why does a runner continue running after crossing the finish line? 5 A bottle opener is commonly a: 6 An object is thrown vertically upward and reaches maximum height h. At…