# Question #315fe

##### 1 Answer

#### Answer:

In uniform circular motion the speed and angular momentum are remaining unchanged.

#### Explanation:

In uniform circular motion a particle completes a revolution in a fixed time and at every point of its motion the rate of change of distance w.r.to time is constant.So its **speed,a scalar quantity remains unchanged.**

But in circular motion the direction of motion continually changes with time, so its **velocity which is a vector quantity changes with time due to change in direction. Hence linear momentum which is a product of mass and linear momentum also changes with time.**

But in uniform circular motion the **angular velocity****remains unaltered.**

Hence its **angular moentum** **remains unanaltered.**