Physics · 2024
JEE Main · 6 April 2024, Shift 1 · Q50
A bullet of mass 50 g is fired with a speed 100 m / s on a plywood and emerges with 40 m / s. The percentage loss of kinetic energy is:
A bullet of mass $\displaystyle 50$ g is fired with a speed $\displaystyle 100 \mathrm{~m} / \mathrm{s}$ on a plywood and emerges with $\displaystyle 40 \mathrm{~m} / \mathrm{s}$. The percentage loss of kinetic energy is :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 84$%
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.