A particle in circular motion performs 30 oscillations in 6 seconds. Its angular velocity is
10π rad s−110\pi\,\mathrm{rad\,s^{-1}}10πrads−1
5π rad s−15\pi\,\mathrm{rad\,s^{-1}}5πrads−1
6 rad s−16\,\mathrm{rad\,s^{-1}}6rads−1
5 rad s−15\,\mathrm{rad\,s^{-1}}5rads−1