5. A 61 kg girl is running at a constant speed of 5.0 m/s for 480 m. a) How much kinetic energy does she have? 2 marks b
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5. A 61 kg girl is running at a constant speed of 5.0 m/s for 480 m. a) How much kinetic energy does she have? 2 marks b
5. A 61 kg girl is running at a constant speed of 5.0 m/s for 480 m. a) How much kinetic energy does she have? 2 marks b) Using physics principles, explain why no work was done against inertia over this distance. 2 marks
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