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JEE Main 20246 AprilMorning Shift

Exam: JEE Main
Year: 2024
Date: 6 April
Shift: Morning Shift
Subject: Physics
Chapter: Center of Mass, Momentum and Collision

JEE Main 2024 · 6 April · Morning Shift · Physics · Center of Mass, Momentum and Collision

Four particles A, B, C, D of mass (m)/(2), m, 2 m, 4 m , have same...

Four particles

A, B, C, D

of mass

\frac{m}{2}, m, 2 m, 4 m

, have same momentum, respectively. The particle with maximum kinetic energy is :

Options

A $B$
B $A$
C $D$
D $C$

Correct answer

B. $A$

Step-by-step solution

\mathrm{KE}=\frac{\mathrm{p}^2}{2 \mathrm{~m}}

Same momentum, so less mass means more KE. So

\frac{\mathrm{m}}{2}

will have max.

\mathrm{KE}

.

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