NEET Physics Impulse & Momentum MCQ Question
A shell of mass 0.020 kg is fired by a gun of mass 100 kg with a muzzle speed of 80 m/s. What is the recoil speed of the gun?
0.016 m/s
0.020 m/s
0.032 m/s
0.040 m/s
Correct Answer
Detailed Explanation
Using conservation of momentum from the NCERT context, the total momentum before and after firing remains zero. Therefore, 0.020 kg * 80 m/s = 100 kg * v, solving gives v = 0.016 m/s.
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