Question

From a rifle of mass 4 kg, a bullet of mass 5 g is fired with an initial velocity of 35 m/s, Calculate the initial recoil velocity of the rifle

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Answer 1

Answer:

V = 0.035 m/s

Explanation:

Mass of the rifle (M) = 4 kg
Mass of the bullet (m) = 5g = 0.005kg
Velocity of the bullet (v) = 35 m/s

Let the recoil velocity of the gun be V

By using Law of conservation of Linear Momentum,

M * V = m * v
V = (m * v)/M
V = (0.005 * 35)/5

V = 0.035 m/s