Solved UPSC CDS/OTA Question
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Q · Newton's Laws of MotionMedium · 45s
A man fires a 10 g bullet at 400 m/s from a 5 kg gun. The recoil speed of the gun is:
TopicNewton's Laws of Motion
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
m₁v₁ = m₂v₂ → (0.01 kg)(400) = 5×v v = 0.8 m/s
Final Answer: Option B - 0.8 m/s