Agirl and her dog are running. the dog has a mass of 20kg. the girl has a mass of 60 kg. suppose both the dog and the girl run at a speed of 2 m/sec. calculate both of their kinetic energies. show your work.
suppose the dog speeds up and is now running at a speed of 4 m/sec. calculate the dog's kinetic energy. show your work.
Answers: 2
, we can say that the girl's kinetic energy is 120 and the dog's is 40. If the dog speeds up, it now has a kinetic energy of 160. 
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Agirl and her dog are running. the dog has a mass of 20kg. the girl has a mass of 60 kg. suppose bot...
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