Which of the following quantity remains constant in a uniform circular motion:
(a) velocity
(b) speed
(c) acceleration
(d) both velocity and speed

Options

A. velocity
B. speed
C. acceleration
D. both velocity and speed

Explanation

To solve the question regarding which quantity remains constant in uniform circular motion, let's analyze the options step by step.

### Step 1: Understanding Uniform Circular Motion
Uniform circular motion refers to the motion of an object traveling in a circular path at a constant speed. While the speed is constant, the direction of the velocity vector is continuously changing.

**Hint:** Remember that uniform circular motion implies constant speed but changing direction.

### Step 2: Analyzing the Options
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