Physics-Uniform Circular Motion
NEET Physics Uniform Circular Motion MCQ Question
Type: MCQ-numerical-Medium-Class 11
An object moves with uniform speed in a circular path of radius 10 m, completing one full revolution every 20 seconds. What is the magnitude of its centripetal acceleration?
A
0.5 m/s²
B
0 m/s²
C
0 m/s²
D
0 m/s²
Correct Answer
Option B
Detailed Explanation
The centripetal acceleration is calculated using a_c = v²/R. The speed v can be found from the circumference over time, i.e., (2πR)/T. Substituting R = 10 m and T = 20 s gives v = π m/s, and thus a_c = π²/10 ≈ 1.0 m/s².
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