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A stone tied to the end of string 1m lon...

A stone tied to the end of string 1m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44s, What is the magnitude and direction of acceleration of the ston is ?

A

`pi^2/4 ms^-2` and direction along the radius towards the centre

B

`pi^2 ms^-2` and direction along the radius away from the centre

C

`pi^2 ms^-2` and direction along the radius towards the centre

D

`pi^2 ms^-2` and direction along the tangent to the circle

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SL ARORA-Motion in a Plane-Excercise
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