2014 Shanghai Question 8 Single-choice Differentiating 2014_上海 Paper 8.在离地高 $h$ 处,沿竖直方向同时向上和向下抛出两个小球,她们的初速度大小均为 $v$,不计空气阻力,两球落地的时间差为 A. (A)$\dfrac{2v}{g}$B. (B)$\dfrac{v}{g}$C. (C)$\dfrac{2h}{v}$D. (D)$\dfrac{h}{v}$ Answer keyA ☆ SaveCan't do it, show the explanation查看原卷 →