Question

If soldiers had the options to use guns of different weights but the bullets used are of a fixed weight, what would they prefer and why?

• A. Light guns, because handling them is easy
• B. Heavy guns, because they can be held firmly
• C. Heavy guns because they have less recoil
• D. Light guns, because they can be carried easily

Answer 1

The correct option is C Heavy guns because they have less recoil

We know that when bullet is fire then linear momentum is conserb.

$mu=M{V}^1$

m = mass of bullet

M = mass of gun

u = velocity of bullet

V = reverse or recoil velocity of gun.

$V^1=\frac{m}{M}u$ here u and m is fixed.

M $⟶$ increases $V^1$ decreases so solder choose heavy gun because less recoil.