Two clowns at a circus are performing an act in which one clown jumps down on a seesaw and launches the other clown, who is standing on the opposite
end, as shown in the image below. Without losses due to friction or air
resistance, this process will go on forever in periodic motion. If the clown on
the left has a mass of 75 kg and a starting height of 7 m, what is the
maximum height that the clown on the right can reach if she has a mass of
50 kg?
A 8.5
B 9.0
C 10.5
D 7.0

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