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A student runs a simulation of a skateboarder going back and forth on a U-shaped ramp. The skateboarder begins with 1,560 joules of potential energy. The bar graph shows the energy of the skateboarder system at the end of the simulation. What are the potential energy (PE) and kinetic energy (KE) of the skateboarder at the end of the simulation?
PE = 520 J; KE = 520 J.
PE = 0 J; KE = 1,560 J.
PE = 0 J; KE = 0 J.
PE = 780 J; KE = 0 J.
