Physics, 27.08.2021 19:10 miranda911
A 54.5 kg skateboarder starts out with a speed of 1.90 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the skateboarder is 5.90 m/s. Calculate the change in the gravitational potential energy.
Answers: 3
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A 54.5 kg skateboarder starts out with a speed of 1.90 m/s. He does +80.0 J of work on himself by pu...
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