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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Analyzing +4 | -1

Given below are two statements: one is labelled as Assertion A and the other is labeled as Reason R.
Assertion A: Body

P

having mass

M

moving with speed

u\,

has head-on collision elastically with another body

Q

having mass

m

initially at rest. If

m < < M

, body

Q

will have a maximum speed equal to

2u\,

after collision.
Reason R: During elastic collision, the momentum and kinetic energy are both conserved.
In the Light of the above statements, choose the most appropriate answer from the options given below.

View answer and explanation

Correct option: C

Both A and R are correct and R is the correct explanation of A.

Option C is correct because both the assertion and the reason are true, and the reason correctly explains why the speed of body Q is approximately 2u after the collision.

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