Question

A $10g$ bullet is fired from a gun with a velocity of $250m{s}^{-1}$. How much force is experienced by the gunman if it takes $0.1s$ to fire a shot?​

• A. $25N$
• B. $20N$
• C. $23N$
• D. $30N$

Answer 1

The correct option is A $25N$

Given,
Mass of the bullet = $10g$
Velocity with which it is moving = $250m{s}^{-1}$
Time taken to fire the bullet from the gun = $0.1s$

The force experienced by the gunman is:
$F=\frac{mv}{t}$
$F=\frac{10}{1000kg}\times 250m/s$
$F=25kgm/s$ or $F=25N$