Amicrowave oven has a rotating plate for uniform cooking. the
plate takes 8 seconds to complete one revolution and is
driven by three rollers. the distance from the center of the plate
to the point of contact between the plate and the roller is
12 cm. the radius of the roller is 0.5 cm. assuming no slip between
the wheels and the plate, determine the rotational speed
of the rollers. take the k-direction as perpendicular to the
surface of the plate and the i-direction as left-to-right across
the
plate.