Given,
Diameter is d=20 foot.
It makes revolution as 5 rev per minute.
Thus the radius is r=d/2=10 foot.
Now the speed is
[tex]v=r\omega[/tex]Here,
[tex]\omega=5\times2\pi\text{ rad/min=10}\frac{\pi}{60}\frac{rad}{\sec }[/tex]Thus,
[tex]v=10\times\frac{\pi}{6}=\frac{5\pi}{3}=\frac{5.23foot}{\sec }[/tex]Thus teh answer is 5.23 foot/sec
