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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

1 Easy

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Application +4 | -1

Two masses of 1 kg and 4 kg are moving with equal kinetic energy. The ratio of their linear momentum is

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Correct option: A

0.043055556

Option A (0.043055556) is incorrect. The correct ratio of their linear momentum is 0.5, not 0.043055556. The kinetic energy is equal, so

1/2 * m1 * v1^2 = 1/2 * m2 * v2^2

. Therefore,

v1/v2 = sqrt(m2/m1) = sqrt(4/1) = 2

. The ratio of momentum is $m1*v1 / (m2*v2) = 1*v1 / (4*v2) = 1/4 * v1/v2 = 1/4 * 2 = 1/2 = 0.5

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