The given ratio of the velocities is
v2v1=4
The percentage loss in kinetic energy is
2mv212mv21−2mv22×100=4x⇒v21v21−v22=400x⇒1−v21v22=400x⇒1−161=400x⇒x=375
JEE Main 2023 — Physics Mechanics
A body is dropped on ground from a height h1 and after hitting the ground, it rebounds to a height h2. If the ratio of velocities of the body just before and after hitting ground is 4, then percentage loss in kinetic energy of the body is 4x. The value of x is _____.
Held on 6 Apr 2023 · Verified 6 Jul 2026.
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