Tuesday
July 28, 2015

Homework Help: Physics

Posted by Justin on Saturday, December 4, 2010 at 9:27pm.

a 55 kg skateboarder starts out with a speed of 1.8 m/s. he does +80 J of work on himself by pushing with his feet against the ground. in addition, the 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 m/s. Calculate the change in the gravitational potential energy. How much has the vertical height of the skater changed, and is the skater above or below the starting point?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Members