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Question

When a car moves on circular track with uniform speed,its velocity is said to be changing why?

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Solution

Dear Student,

We know velocity has magnitude and direction.When object moves in circular motion, direction of the motion changes continuously.As direction changes, velocity also changes continuously hence it is said to be accelerates motion.Tangent at point on the circle, gives the direction of the motion, now at different points, tangents ahve different directions so direction is not same for two points.

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