A body is moving in a circle at constant speed. Which statement is true?
Correct answer: B. It accelerates towards the centre of the circle
- A. It accelerates away from the centre of the circle
- B. It accelerates towards the centre of the circle
- C. It does not accelerate
- D. None of these
Explanation
Correct Option:BThis option is correct because when a body is moving in a circle centripetal force acts on it, due to this centripetal force an acceleration is produced which is directed toward the centre.
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About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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