Question

A gun recoils with a velocity of 4 m/sec when it fires a 25 gram bullet lat a speed of 600 m/sec. What is the mass of the gun in Kg?

Answer 1

The mass of the gun is `=3.75kg`

Explanation:

There is conservation of momentum

`m_g*v_g=m_b*v_b`

Therefore,

The mass of the gun is

`m_g=(m_bv_b)/(v_g)`

`=(0.025*600)/4`

`=3.75kg`