A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44 seconds, what would be the magnitude and direction of acceleration of the stone?
$π^{2} m s^{- 2}$ and direction along the tangent to the circle
$π^{2} m s^{- 2}$ and direction along the radius towards the centre.
$\frac{π^{2}}{4} m s^{- 2}$ and direction along the radius towards the centre.
$π^{2} m s^{- 2}$ and direction along the radius away from the centre.

Question

A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44 seconds, what would be the magnitude and direction of acceleration of the stone?
$π^{2} m s^{- 2}$ and direction along the tangent to the circle
$π^{2} m s^{- 2}$ and direction along the radius towards the centre.
$\frac{π^{2}}{4} m s^{- 2}$ and direction along the radius towards the centre.
$π^{2} m s^{- 2}$ and direction along the radius away from the centre.

Toppr Admin · Accepted Answer