If the radius of an object is doubled, the centripetal force acting on the same object becomes:
Correct answer: B. Half
- A. Double
- B. Half
- C. Eight times
- D. Remains the same
Explanation
Centripetal Force is given by Fc = mv2 / r Fc ∝ 1/r If the radius is doubled, then Fc will become half. ½ Fc = mv2 / 2r Hence, B is the correct option.
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