A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without
A size-5 soccer ball of diameter 22.6 cm and mass 426 g rolls up a hill without slipping, reaching a maximum height of 9.00 m above the base of the hill. We can model this ball as a thin-walled hollow sphere.
Required:
a. At what rate was it rotating at the base of the hill?
b. How much rotational kinetic energy did it then have?