Physics

Problem

A point on the rim of a rotating disc has a linear speed of

10\,\text{m\,s}^{-1}

while the disc makes

2\,\text{revolutions per second}

. Determine the radius of the disc. a)

1.60\,\text{m}

0.40\,\text{m}

0.80\,\text{m}

3.18\,\text{m}