NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A car is moving on a circular horizontal track of radius 20m with a constant speed of 20 m/s. A simple pendulum of length 50cm hangs from the roof of the car. The angle made by the string of pendulum with the vertical is

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Correct option: D

{\tan ^{ - 1}}\left( 2 \right)

The correct answer is D (

{\tan ^{ - 1}}( 2 )

) because the angle is determined by the ratio of centripetal acceleration to gravitational acceleration.

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