Question

The constant quantity in uniform circular motion is :

• A. Linear speed
• B. Centripetal force
• C. Acceleration
• D. Momentum

Answer 1

Answer: (D)

Uniform circular motion is the situation where the object moves in an Euclidean plane.The angular velocity remain constant as well as the centrifugal force $F=\frac{m{v}^2}{r}$

The Angular momentum of the object $L=r\times p$ is directed towards the normal to the plane.

$p=mv$ and radius, mass and velocity remain same.

Hence the Angular momentum remains constant.