Question

Question #878c8

Answer 1

`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"`