如图所示将一篮球从地面上方b点斜�上抛出刚好垂直击中篮板上a点不计空气阻力.若抛射点b�篮板方�移动一小段距离仍使抛出的篮球垂直击中a Template




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anonymous
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anonymous
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sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )


anonymous
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sketch #2977 Spongebob Germaine Hoens

tomski如图所示将一篮球从地面上方b点斜�上抛出刚好垂直击中篮板上a点不计空气阻力.若抛射点b�篮板方�移动一小段距离仍使抛出的篮球垂直击中a coloring