A horizontal circular platform rotates at a rate of 12.0 revolutions per minute. If a 33.0 kilogram kid sits on the platform at a distance of 2.80 m from the center of the circle.
a. Determine the kid's rotational speed?
b. Determine the direction and magnitude of the kid's acceleration?
c. Determine the minimum static frictional coefficient necessary to keep the kid from slipping off the platform?