The reasons of the recoil of gun when fired

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

Before firing, both the bullet and gun are at rest and initial momentum of the system is zero

As soon as the bullet is fired it moves forward with a large velocity

In order to conserve momentum. The gun moves backward with such a velocity that the final momentum of the system is zero.

All the above

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

F_{ext} = 0, Δ \bar{P} = 0

$\Rightarrow P = constant$

$\Rightarrow P_{l} = P_{f}$

$\Rightarrow m_{b} u_{b} + m_{g} u_{g} = m_{b} v_{b} + m_{g} v_{g}$

$\Rightarrow 0 = m_{b} v_{b} + m_{g} v_{g}$

Watch 3-min video & get full concept clarity

JEE

NEET

Foundation JEE

Foundation NEET

CBSE