Acrobat Bart at the Circus Drops Vertically onto the End

question 15

Multiple Choice

Acrobat Bart at the circus drops vertically onto 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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