A girl and her bicycle have a total mass of 46.0 kg. At the top of the hill her speed is 6.0 m/s, and her speed doubles as she rides down the hill. The hill is 15.0 m high and 105 m long. How much kinetic energy and potential energy is lost to friction?

a. 4.3E+3 J
b. 7.6E+3 J
c. 3.5E+3 J
d. 4.4E+3 J
e. 4.2E+3 J


a

Physics & Space Science

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Physics & Space Science