Q. A simple pendulum is oscillating without damping. When the displacement $of$ the bob is less than maximum, its acceleration vector $\overrightarrow{a}$ is correctly show in figure.

A) [image:14_image27.emf]
B) [image:14_image28.emf]
C) [image:14_image29.emf]
D) [image:14_image30.emf]
Explanation

(c) When the displacement of bob is less than maximum, there will two compounding acceleratins $\overrightarrow{a_{I}}$ and $\overrightarrow{a_{c}}\ $of the bob as shown in figure. Their resultant acceleration $\overrightarrow{a}$ will be represented by the diagonal of the parallelogram
[image:14_image71.emf]

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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