Laws Of Motion Question 49
Question: A bullet mass 10 gm is fired from a gun of mass 1kg. If the recoil velocity is 5 m/s, the velocity of the muzzle is [Orissa JEE 2002]
Options:
A) 0.05 m/s
B) 5 m/s
C) 50 m/s
D) 500 m/s
Show Answer
Answer:
Correct Answer: D
Solution:
$ m _{G}v _{G}=m _{B}v _{B} $
therefore $ v _{B}=\frac{m _{G}v _{G}}{m _{B}}=\frac{1\times 5}{10\times {{10}^{-3}}}=500m/s $
