A bullet of mass 10 g is fired from a gun of mass 1 kg . If the recoil velocity is 5 ~m / s , the velocity of the muzzle is

Correct answer: (D) 500 ~m / s. From law of conservation of momentum M V=m v 1 × 5=10 × 10^-3 × v v=500

Q139 / 170 · Manipal (MET) 2019 · Physics

A bullet of mass 10 g is fired from a gun of mass 1 kg . If the recoil velocity is $5 \mathrm{~m} / \mathrm{s}$, the velocity of the muzzle is

From law of conservation of momentum $\begin{aligned} & M V=m v \\ & 1 \times 5=10 \times 10^{-3} \times v \\ & v=500 \end{aligned}$

Hence, the correct answer is option: 'D'.