For a body moving with constant speed in a horizontal circle, which of the following remains constant?

Explanation

When a body is moving with uniform speed in a horizontal circle, its kinetic energy ($$K = \frac{1}{2}mv^2$$) remains constant. When a body moves in a horizontal circle, only the direction of velocity, acceleration, and force keeps changing continuously at every instant, but there is no change in their magnitudes. The capacity of an object to do work due to its motion is called its kinetic energy.