Obtain the change in the gravitational potential energy

Reference no: EM13494311

A 57.0 kg skateboarder starts out with a speed of 1.70 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 6.10 m/s.

Calculate the change (?PE = PEf - PE0) in the gravitational potential energy.

Reference no: EM13494311

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