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As per your syllabus, in a recoil scenario (a bullet of mass m fired at v from a rifle of mass M, initially at rest), the rifle recoils at which velocity?
A−(m/M) v
B−(M/m) v
C−(m + M) v
D−v
Answer & Solution
Correct answer: A. −(m/M) v
Your syllabus: 0 = m v + M V_recoil ⇒ V_recoil = −(m/M) v.
Rifle recoils backwards; ratio is mass ratio.
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