Question

A wheel of radius 8.9 feet is moving forward at 11 feet per second. How fast is the wheel rotating?0.35 radians/sec0.81 radians/sec3.5 radians/sec1.2 radians/sec

Answer 1

The formula for velocity is

`v=rw`

Where:

v = velocity

r = radius

w = wheel rotation

Therefore, we find the wheel rotation (w):

`\begin{gathered} 11=8.9w \\ (11)/(8.9)=(8.9w)/(8.9) \\ w=1.23 \end{gathered}`

Answer: 1.2 rad/sec