He also knew where the candy was going to land, but he couldn't get his hand there in time.
这名同学也知道糖的落点,但是他没能及时的接住
耶鲁公开课 - 基础物理课程节选
Solve this equation for t*, put it there and that's where you land.
从这个等式里解出 t*,代入那个式子就知道落点了
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