Physics

Problem

A wheel starts from rest and its angular velocity varies with time according to

\omega=(3.0\,\text{rad/s}^2)\,t+2.0\,\text{rad/s}

. What is the linear speed of a point located

0.15\,\text{m}

from the axis at

t=4.0\,\text{s}

? a)

1.8\,\text{m/s}

14\,\text{m/s}

2.1\,\text{m/s}

1.2\,\text{m/s}