Calculate the speed at the edge of a disc of radius 8.5 cm that rotates at the rate of 2.5 rev/s.
Answer in units of m/s.
the circumference of the disc is 2πr = 17π cm
that would make the speed
2.5 * 17π = 42.5π cm/s = 0.425 m/s
Answer in units of m/s.
that would make the speed
2.5 * 17π = 42.5π cm/s = 0.425 m/s