An automobile has a total mass of 2200 kg. It accelerates from rest to 70 km/h in 40 s. Assume each wheel is a uniform 44 kg disk. Find the following values for the end of the 40 s interval.
a) the rotational kintetic energy of each wheel about its axle
______J
b) the total kinetic energy of each wheel
_______J
c) the total kinetic energy of the automobile
______J