Work Energy And Power Question 87
Question: A gun fires a bullet of mass 50 gm with a velocity of $ 30m{{\sec }^{-1}} $ . Because of this the gun is pushed back with a velocity of $ 1m{{\sec }^{-1}} $ . The mass of the gun is [EAMCET 1989; AIIMS 2001]
Options:
A) 15 kg
B) 30 kg
C) 1.5 kg
D) 20 kg
Show Answer
Answer:
Correct Answer: C
Solution:
$ m _{G}=\frac{m _{B}v _{B}}{v _{G}} $
$ \frac{50\times {10^{-3}}\times 30}{1}=1.5\ kg $
