Physics

Problem

A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 22 s than the acceleration of the stone is :- (1)

5 \text{ m/s}^2

(2)

10 \text{ m/s}^2

(3)

12.8 \text{ m/s}^2

(4) None of these

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