JEE Main Physics question

Physics Systems of Particles and Rotational Motion JEE Main

A light and heavy body have equal kinetic energy. Which one has a greater momentum? [CPMT 1997, DPMT 2001]

(A)The light body
(B)The heavy bodyCorrect
(C)Both have equal momentum
(D)It is not possible to say anything without additional information

Answer: (B)

Solution

p = √(2mE); for equal E, p ∝ √m, so the heavier body possesses the greater momentum.

Question ID VK-153976