Motion in A Plane

Question: A stone is tied to one end of a string 50 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 10 revolutions in 20 s, what is the magnitude of acceleration of the stone



1) $493 cm/s^2$
2) $720 cm/s^2$
3) $860 cm/s^2$
4) $990 cm/s^2$
Solution: Explanation: Explanation

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