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 $



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