a stone attached to the end of elastic string is whirled around in a circular path of radius 20cm if the stone makes 15 complete revolution in 5 seconds, calculate its angular and linear velocities.

Answer 1

ω = 15rev/5sec = 3rev/s = 6π rad/s
v = 20*2π cm/rev * 3rev/s = 120π cm/s

Answer 2

What's the answer with it's calculations

Answer 3

I don't know the answer