Physics

Problem

A ceiling fan starts from rest and undergoes a uniform angular acceleration of

2.0\,\text{rad/s}^2

. What is the linear speed of the tip of a blade

0.30\,\text{m}

long after the fan has been accelerating for

4.0\,\text{s}

? a)

1.2\,\text{m/s}

4.8\,\text{m/s}

2.4\,\text{m/s}

0.60\,\text{m/s}