What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 44 rpm (revolutions per minute) if the wheel's diameter is 31 cm?

Answer 1

Radius = R = 0.31/2 meter
omega = angular velocity = 44 revs/min * 1 min/60 s * 2 pi rad/rev
= 4.61 rad/sec
so
Ac = omega^2 R = (4.61)^2 ^ 0.155