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Centripetal Force and Circular Motion

A body of mas...

Question

A body of mass 40kg is moving in a circle of radius 20m with speed of 2m/s. Find the centripetal force acting on the body.

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Solution

Centripetal force is given by,
$F_{c} = \frac{m v^{2}}{r}$
$= \frac{40 \times (2)^{2}}{20} = 8 N$

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