I'm not sure what formula to use on this?(adsbygoogle = window.adsbygoogle || []).push({});

A ball of mass 15.9 g is attached to a cord of

length 0.478 m and rotates in a vertical circle.

The acceleration of gravity is 9.8 m/s^2

What is the minimum speed the ball must

have at the top of the circle so the cord does

not become slack? Answer in units of m/s.

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# Homework Help: Min. speed

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