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運動的合成第三十四課 課題:兩個勻速直線運動路程的合成。教材內容:1.由舊教材引出本節課所要討論的問題。 2.就教科書第圖41說明方向互成直角的兩匀速直線運動路程的合成。作類似第圖43所示的演示實驗。說明互成銳角或鈍角兩勻速直線運動的合成情形,指出兩個勻速直線運動的合运动仍係一勻速直線運動。 3.結合關於路程合成的討論進一步舉例說明“相對運動”的意義。 4.由以上討論總結出關於運動合成的平行四邊形法則。
Synthesis of sports The thirty-fourth topic: the synthesis of two uniform linear motion. Contents of the textbook: 1. The questions to be discussed in this lesson from the old textbooks. 2. In Figure 41 of the textbook, illustrate the synthesis of two uniform linear movements at right angles to each other. Similar to the demo shown in Figure 43. It shows that the two linear motion at a uniform acute angle or obtuse angle can be made into a straight line with a uniform speed and a straight line. 3. Combining the discussion on distance composition further illustrates the meaning of “relative movement”. 4. From the above discussion, we conclude the parallelogram about motion synthesis.