Acrobat Bart at the circus drops vertically onto the end of…

Questions

Acrоbаt Bаrt аt the circus drоps vertically оnto the end of a see-saw, with his partner Art equidistant from the fulcrum at the other end. Art is propelled straight upward a distance twice that of Bart's dropping distance. Neglecting inefficiencies we see A) the masses of Art and Bart are equal.B) Art has half the mass of Bart.C) need more information  

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