Question

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. by what velocity the gun rebounds backwards

• A. 0.1 m/s
• B. 10 m/s
• C. 1 m/s
• D. 0.01 m/s

Answer 1

Answer: (C)

1 m/s

Answer 2

$v_{G} = \frac{m_{B}v_{B}}{m_{G}} = \frac{0.2 \times 5}{1} = 1\mspace{6mu} m/s$