If momentum of a body increases by 50%, find percentage increase in kinetic energy.
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If momentum of a body increases by 50%, find percentage increase in kinetic energy.

G1 Physics · Accepted Answer

Step 1 — Principle: At fixed momentum, kinetic energy can be written K = p²/(2m). Step 2 — Working: pf=1.5pi. Step 3 — Working: Since K=p²/(2m), Kf/Ki=1.5²=2.25. Step 4 — Working: Percentage gain=(2.25−1)×100=125%. Correct answer: C — 125%.