how far is one turn?
The circumference pi D = pi * 0.56 meter
so it goes 3 pi D /second
3 pi D m/s = 5.28 meters/second
Ac = V^2/R = 5.28^2 / (0.28) m/s^2
Your roommate is working on his bicycle and has the bike upside down. He spins the 56.0 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?
What is the pebble's acceleration?
1 answer
1 answer