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A stone tied at the end of a string 80 c...

A stone tied at the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 25 revolutions in 14 s, what is the magnitude of acceleration of the stone ?

Text Solution

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The correct Answer is:
`9.9 ms^(-2)`, in radial direction towards the centre at all points.
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Knowledge Check

  • A boy moves a stone tied to a string on horizontal circular path. If the string breaks, then the stone

    A
    would continue to move on the original circular path.
    B
    would move on a linear path towards the centre of the circle
    C
    would start moving on a linear path in the direction of tangent drawn at the point of a circle.
    D
    would start moving away from the centre in radial direction at the point of a circle.

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