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帆船可以提供一种最有趣的矢量分解的演示.我用简单易作的帆车和电扇成功地作了演示.我做的帆车是一块小木块,大约5×10cm~2,下面装有四个轮子,木块上刻着狭槽,以便把一片金属帆安置在小车上.金属帆大约有30 x 30 cm~2大小.狭槽刻了三个,一个平行轮轴,一个沿着船脊且垂直于轮轴,第三个与船脊成20°角,当帆平行轮轴时,这小车就是一艘
Sailing boat can provide a demonstration of the most interesting vector decomposition.I used the easy to make sailboat and electric fan successfully demonstrated.I made the sailboat is a piece of wood, about 5 × 10cm ~ 2, below with four A wheel with a slotted cutout in order to place a metal sail on the trolley The metal sail has a size of about 30 x 30 cm 2 The slot is carved into three, one parallel axle, one along the spine Perpendicular to the axle, the third at a 20 ° angle to the ship's spine, and when the sail is parallel to the axle, the car is a