Physics - Circular Motion Question with Solution | TestHub
PhysicsCircular MotionKinematicsMedium2 minQB
PhysicsMediumassertion reason
Assertion: A pendulum is oscillating between two extreme points. At the lowest point of the swing the acceleration of the bob is zero.
Reason: At the lowest point the velocity of the bob is maximum.
Options:
Answer:
D
Solution:
The Assertion is false: at the lowest point the tangential acceleration is zero but the radial acceleration is not, and is maximum there, so the acceleration is upward and non-zero. The Reason is true (speed is greatest at the lowest point by energy conservation).
Stream:JEESubject:PhysicsTopic:Circular MotionSubtopic:Kinematics
⏱ 2mℹ️ Source: QB
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