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3
1 point
Three skateboarders take three different paths to the top of the half-pipe
to start skateboarding at position 1. The skateboarders are all the same
height and weight. Which skateboarder will have the greatest amount of
gravitational potential energy?
The skateboarder who took the stairs.
The skateboarder who skateboarded up the half-pipe.
The skateboarder who walked up the half-pipe.
O
The gravitational potential energy is the same for all of the
skateboarders.
4
1 point
What is happening at the top of the roller coaster track at position 2?