Tangential speed:

$\overline{){\mathbf{v}}{\mathbf{=}}{\mathbf{r}}{\mathbf{\omega}}}$, where r is the radius of rotation and ω is the angular speed.

Your roommate is working on his bicycle and has the bike upside down. He spins the 62.0 cm-diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second.

What is the pebble's speed? and what is the pebbles acceleration?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Rotational Velocity & Acceleration concept. You can view video lessons to learn Rotational Velocity & Acceleration. Or if you need more Rotational Velocity & Acceleration practice, you can also practice Rotational Velocity & Acceleration practice problems.