Physics, 13.03.2020 16:53, supermkimbrel

A 52.9-kg skateboarder starts out with a speed of 2.04 m/s. He does 116 J of work on himself by pushing with his feet against the ground. In addition, friction does -264 J of work on him. In both cases, the forces doing the work are non-conservative. The final speed of the skateboarder is 6 m/s. a. Calculate the change in the gravitational potential energy. b. How much has the vertical height of the skater changed, and is the skater above or below the starting point?

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A 52.9-kg skateboarder starts out with a speed of 2.04 m/s. He does 116 J of work on himself by push...