Question

Find the linear speed of P when r = 30 cm, w=pi/10 per sec and t = 4 sec.

Answer 1

$\begin{gathered} v=wr \\ \text{wher} \\ w=\text{angular velocity}=\frac{1}{10}\pi \\ r=\text{radius of circular path}=30\text{ cm} \\ v=\frac{\pi}{10}\times30=3\pi \end{gathered}$