Question

A 5kg rifle a 10 kg Bullet at a velocity of 500 metre per second find the recoil velocity of the refile

Answer 1

Answer:

Explanation:

Given that,

Mass of the rifle, m_1=5\ kg

Mass of the bullet, m_2=10\ g = 0.01\ kg

Velocity of the bullet, v_2=500\ m/s

We need to find the recoil velocity of rifle. Here, the momentum of the bullet rifle system remains constant. Using the conservation of linear momentum we get :

m_1v_1=m_2v_2\\\\5v_1=0.01\times 500\\\\5v_1=5\\\\v_1=1\ m/s

So, the recoil velocity of rifle is 1 m/s. Hence, this is the required solution.