Question

6 A bullet of mass 40 gm is fired from a gun of mass 8 kg with a velocity of 800 m/s, calculate the recoil velocity of gun​

Answer 1

Answer:

4m/s backwards

Explanation:

V=mv/M

V,M are for gun

v, m are for bullet so

V=0.04*800/8

=4m/s

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Answer 2

Given :-

Mass of Gun = M = 8 Kg

Mass of Bullet = m = 40/1000 = 40 × 10-³

Velocity of Bullet = v = 800 ms-¹

Let the recoil velocity of gun = V

As we know by a relation that,

MV = mv

8V = 4 × 10-² × 800

V = 4 × 8 × 10-² × 10²/8

V = 4 ms-¹

Hence,

The recoil velocity of Gun = V = 4 ms-¹.