A pistol of mass 4.0 kg fires a bullet of mass 20 g horizontally with a speed of 500 m s⁻¹

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A pistol of mass 4.0 kg fires a bullet of mass 20 g horizontally with a speed of 500 m s⁻¹. Calculate the magnitude of the pistol’s recoil speed. (a)

5.0\ \text{m s}^{-1}

(b)

2.5\ \text{m s}^{-1}

(c)

1.25\ \text{m s}^{-1}

(d)

25\ \text{m s}^{-1}