Physics
JAMB 2011
An object of mass 2 kg moves with a velocity of 10 ms
1 round at circle of radius 4 m. Calculate the centripetal force on the object
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A.
25 N
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B.
100 N
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C.
50 N
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D.
40 N
Correct Answer: Option C
Explanation
Centripetal force,
F = \( \frac{mv^2}{r} \)
= \( \frac{2 \times 10^2}{4} \)
= \( \frac{200}{4} \)= 50N
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