Question

In uniform circular motion(a) speed remain constant
(b) velocity remain constant
(c) speed and velocity both remain constant
(d) neither speed nor velocity remain constant

Answer 1

Answer:

when the body moves in a circular path around a fixed point with a constant speed than the motion of the body is known as uniform circular motion

Answer 2

Uniform circular motion is a circular motion at constant speed

Explanation:

Uniform circular motion is a circular motion at constant speed. The body moving in a circle is constantly changing its direction. Though the body's speed is constant, its velocity is not. It is accelerating due to its change in direction, but there is an inward net force directed perpendicular to the velocity vector. The object is always changing its direction and undergoing an inward acceleration.

Example, a cyclist moving around the perimeter of the circular path at constant speed.