Question

A bullet of mass 10g is fired at a speed of 200m/s from a gun of mass 2.0 kg. The recoil velocity of the gun is​

Answer 1

Given :-

• Mass of the bullet = 10 g
• Speed of the bullet = 200m/s
• Mass of the gun = 2.0 g

To Find :-

• Recoil Velocity of the gun.

Solution :-

We know that,

V = -mv/M

Here,

V = ?

M = 2.0 g

m = 10 g

[-ve sign shows opposite direction]

Now,

Mass of the bullet = 10 g = 0.01 kg

→ V = -mv/M

→ V = -(0.01×200)/2.0

→ V = -2/2.0

→ V = -1 m/s