# . What is the difference between uniform linear motion and uniform circular motion

Explain with examples.

Explanation

(I) UNIFORM LINEAR MOTION:- When a body is moving with constant velocity then the motion is said to be uniform linear motion.

Velocity is a vector quantity because it has both Magnitude and direction .So if we say constant velocity it means that both direction and

magnitude are fixed and the body moves in a straight line without a change in its speed.

For example, A train moving with constant speed on a straight track.

(II) UNIFORM CIRCULAR MOTION:- When a body moves at a constant speed in a circle then the motion is said to be uniform circular motion.

In this case the magnitude of velocity is fixed but the direction is not fixed and changes at every moment. When a particle moves in a circle then the

tangent at every point on the circle gives the direction of velocity at that point.

For example, A kid on a merry go round which is moving with constant speed in a circle.