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Two students are watching a person riding a skateboard up and down a ramp. Each student shares what they think about the energy of the skateboarder as they ride up and down the ramp. Elisa: I think the skateboarder has the more total energy at the top bottom of the ramp than the bottom of the ramp. Raymond: I think the skateboarder has the same total energy at all points on the ramp.

Respuesta :

Answer:

Explanation:

We know that , If the frictional force on a system is zero , then the total energy of a system will be conserved.

By using energy conservation

KEā‚ + Ā Uā‚ = KEā‚‚ + Uā‚‚

KEā‚=Kinetic energy at location 1

Uā‚ =Potential energy at location 1

KEā‚‚=Kinetic energy at location 2

Uā‚‚=Potential energy at location 2

Therefore, Raymond is thinking in a right way.

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