問題詳情
9. Two balls, projected at different times so they don’t collide, have trajectories A and B, as shownbelow.Which statement is correct?
(A) v0B must be greater than v0A.
(B) Ball B is in the air for a longer time than ball A.
(C) Ball A is in the air for a longer time than ball B.
(D) Ball B has a greater acceleration than ball A.
(E) Ball A has a greater acceleration than ball B.