Question

If the speed of an object in circular motion is not constant, it is known as :

• A. Uniform circular motion
• B. Non uniform circular motion
• C. Constant circular motion
• D. Horizontal circular motion

Hint:

Uniform circular motion has constant speed, while non-uniform circular motion involves changing speed.

Answer 1

The Correct Option is B

Concept: Circular motion refers to the motion of an object along a circular path.
• If the speed remains constant, the motion is called uniform circular motion.
• If the speed changes during motion, the motion is called non-uniform circular motion. In non-uniform circular motion, both the magnitude and direction of velocity change with time.

Step 1: Understand the condition given in the question.
The question states that the speed of the object is not constant.

Step 2: Identify the type of circular motion.
When speed changes during circular motion, it is known as: \[ \text{Non uniform circular motion} \] Hence, the correct answer is: \[ \boxed{(B)\ \text{Non uniform circular motion}} \]