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Question #878c8

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May 11, 2017

#1/2 (T+U)_o = U_o#

#implies T_o = U_o#

(This only makes sense if the ball is moving downward at #t_o# with velocity #v_o#.)

#implies v_o = sqrt(2 gh) = sqrt(2 * g * 10) approx 14 " m/s"#

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