Question

A bullet of mass 10 g is fired with a velocity of 20 m/s from a gun of mass 2 kg. Find the recoil velocity (in m/s) of the gun.

Answer 1

hey friend,
First of all answer is 0.1m/s.
I can tell you the easy formula by which you can answer this recoil velocity type of questions easily.

Formula--

VR = (m/M)×v

in which,
m = mass of bullet
here it is 10g so you have to convert it in kg
M = mass of gun
v = velocity of bullet

hope this will help you in future..

Answer 2

Answer:

Explanation:

it is a basic newtons third law. bullet goes forward with its mass (size) and velocity, the same amount of opposite reaction done in gun to backward movement. i.e

bullet* bullet velocity = gun * gun velocity

10 g * 20 m/s = 2000 g * gun velocity

gun velocity = 0.1 m/s