NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

1 Hard

1 of 1

Analyzing +4 | -1

Assertion (A): A disc is rolling on a rough horizontal surface without slipping. The velocity of centre of mass is

v .

Then all the other points on the disc lying on a circular arc with point of contact as the center and this arc passing through center of mass of disc will have the same speed

v.

Reason (R): When a disc is rotating without sliding on a rough horizontal surface the magnitude of velocities of all the points at a distance

r

from point of contact is same.

View answer and explanation

Correct option: A

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Option A is correct because both the assertion and reason are true, and the reason correctly explains the assertion regarding rolling motion.

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