NEET Physics Question - Rotational Motion

Assertion (A): By definition, pure rolling of a body occurs when velocity of its point of contact is zero relative to the surface on which it rolls.

Reason (R): A body is purely rolling (rolling without slipping). The velocity of point of contact (of body) must be zero with respect to ground.

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

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Pure rolling is fundamentally defined by the condition that there is no relative motion (slipping) between the contact point of the rolling body and the surface it rolls on. This means their relative velocity must be zero.

Both A and R state this definition/condition, with R reinforcing A. Thus, both A and R are true, and R correctly explains A.

Rankers Physics

Definition of Pure Rolling

Solution:

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