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Centripetal Acceleration

A volunteer i...

Question

A volunteer is rotated in a horizontal circle of radius $7 m$ . Find the period of rotation for which the acceleration is equal to $3 g$ .

A

2.61 s

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B

2.87 s

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C

3.07 s

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D

3.31 s

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Solution

The correct option is D $3.07 s$
As par given condition:
$a_{r} = r {(\frac{2 π}{T})}^{2} = 3 g$
$\Rightarrow$ $T \approx 3.07 s$

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