A. 164N
B. 160N
C. 158N
D. 172N
Correct Answer: Option B
B. 160N
Explanation
ω = 2πF = 2π × 2 = 4πrad−1
Centripetal force = mrω2
⇒ 0.5 × 2 × (4π)2
⇒ 160N
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