Physics-Uniform Circular Motion
NEET Physics Uniform Circular Motion MCQ Question
Type: MCQ-numerical-Easy-Class 11
An object is moving in uniform circular motion in a circle of radius 2 m with a constant speed of 4 m/s. What is the magnitude of the centripetal acceleration of the object?
A
8 m/s²
B
16 m/s²
C
4 m/s²
D
2 m/s²
Correct Answer
Option A
Detailed Explanation
The centripetal acceleration a_c in uniform circular motion is given by a_c = v²/R, where v is the speed and R is the radius. Substituting v = 4 m/s and R = 2 m, we get a_c = (4)²/2 = 8 m/s².
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