A particle of mass 0.02 kg moves in a horizontal circle of diameter 1 m with an angular velocity of $3\pi \mathrm{rad s}^{-1}$.

A particle of mass 0.02 kg moves in a horizontal circle of diameter 1 m with an angular velocity of $3\pi \mathrm{rad s}^{-1}$.

What is the magnitude and direction of the force responsible for this motion?

Magnitude of force / N	Direction of force
$0.03\pi$	away from centre of circle
$0.03\pi$	towards centre of circle
$0.09\pi^2$	away from centre of circle
$0.09\pi^2$	towards centre of circle