When a body moves uniformly along the circle, then:- (a) its velocity changes but speed remains the same (b) its speed changes but velocity remains the same (c) both speed and velocity changes (d) both speed and velocity remains same

The correct answer is (a) its velocity changes but speed remains the same

Solution

A uniform circular motion is the movement of an object along the circumference of a circle in a circular path. It can be uniform with constant speed.

When a body moves uniformly in the circle, it is covering the same distance at every passage of time. Therefore, the speed remains the same. But since it is moving in a circle, the direction of motion continuously changes.  The speed remains constant while the velocity changes. So this indicates that the speed remains constant while the velocity changes.

Check out the video given below to know more about types of motion

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