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You have a tiny slip of paper and a large rectangular wooden

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You have a tiny slip of paper and a large rectangular wooden block.If you put both of them side-by-side and drop the two to the floor from the same height,the block gets to the floor first.Can you think of (and describe) three “simple” ways (using nothing,absolutely nothing,but the two objects,and not in special rooms,with wind,with fancy equipment,etc.) to ensure that the two objects will fall to the floor in the same time?
You have a tiny slip of paper and a large rectangular wooden
1.速度不会突变,所以速度只能从0开始变化,从0到非0需要时间,而开始一瞬,即尚没有时间间隔,则速度仍为0.在高中物理范围内受力会突变,所以加速度
再问: 啥米 解释的更清楚点