Non-uniform Circular Motion Vectors – Rankers Physics

Kinematics of Circular Motion: Practice Problem & Solution

Assertion (A): In non-uniform circular motion, velocity vector and acceleration vector are not perpendicular to each other. Reason (R): In non-uniform circular motion, particle has normal as well as tangential acceleration.  
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

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Kinematics of Circular Motion. Understanding the underlying formula is key to arriving at the correct answer below:

In non-uniform circular motion, there is both tangential and centripetal acceleration. The tangential acceleration is parallel to velocity, so the resultant acceleration is not perpendicular to velocity. Reason (R) correctly identifies the components of acceleration, explaining why (A) is true.

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