A 56.6-kg skateboarder starts out with a speed of 2.28 m/s. He does 96.5 J of work on himself by pushing with his feet against the ground. In addition, friction does-298 J of work on him. In both cases, the forces doing the work are non-conservative. The final speed of the skateboarder is 8.16 m/s. (a) Calculate the change (PE-PEo) in the gravitational potential energy. (b) How much has the vertical height of the skater changed? Give the absolute value. (a) Number i (b) Number i Units Units

A 56.6-kg skateboarder starts out with a speed of 2.28 m/s. He does 96.5 J of work on himself by pushing with his feet against the ground. In addition, friction does-298 J of work on him. In both cases, the forces doing the work are non-conservative. The final speed of the skateboarder is 8.16 m/s. (a) Calculate the change (PE-PEo) in the gravitational potential energy. (b) How much has the vertical height of the skater changed? Give the absolute value. (a) Number i (b) Number i Units Units

Name: View PoliciesCurrent Attempt in ProgressA 56.6-kg skateboarder starts
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Description: View PoliciesCurrent Attempt in ProgressA 56.6-kg skateboarder starts out with a speed of 2.28 m/s. He does 96.5 J of work on himself by pushing with his feet against theground. In addition, friction does -298 J of work on him. In both cases, the fo

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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