NEET Physics Uniform Circular Motion MCQ Question with Solution

An object is moving with a constant speed of 20 m/s in a circular path of radius 10 m. What is the magnitude of its centripetal acceleration?

A

4 m/s²

B

10 m/s²

C

40 m/s²

D

20 m/s²

Correct Answer

Option C

Detailed Explanation

Using the formula for centripetal acceleration $a_c = \frac{v^2}{R}$ , where $v = 20 \text{ m/s}$ and $R = 10 \text{ m}$ , we get $a_c = \frac{(20)^2}{10} = 40 \text{ m/s}^2$ .

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