A fearless bicycle rider announces that he will jump the
问题描述：
A fearless bicycle rider announces that he will jump the
Beaver River Canyon.If he does not use a ramp,but sim-
ply launches himself horizontally,is there any way that he
can succeed?Why?
答
No,he can't succeed!
Because no matter how much the horizontal velocity is ,he will drop under the action of gravity in the vertical direction !
不可以.无论水平速度如何,他在竖直方向上还是会因为受到重力作用而下降!
希望可以帮到你!