18.漁夫用繩子通過竹杠拉起漁網(wǎng).如圖所示.請(qǐng)?jiān)趫D上畫出繩子AB段對(duì)桿拉力F的力臂L. 查看更多

 

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35、漁夫用繩子通過竹杠拉起漁網(wǎng),如圖所示,請(qǐng)?jiān)趫D上畫出繩子AB段對(duì)桿拉力F的力臂L.

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漁夫用繩子通過竹杠拉起漁網(wǎng),如圖所示.請(qǐng)?jiān)趫D上畫出
(1)繩子AB對(duì)桿拉力F1的力臂L1
(2)漁網(wǎng)對(duì)桿的拉力F2的示意圖及該力的力臂L2

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漁夫用繩子通過竹杠拉起漁網(wǎng),如圖所示.請(qǐng)?jiān)趫D上畫出
(1)繩子AB對(duì)桿拉力F1的力臂L1
(2)漁網(wǎng)對(duì)桿的拉力F2的示意圖及該力的力臂L2

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漁夫用繩子通過竹杠拉起漁網(wǎng),如圖所示,請(qǐng)?jiān)趫D上畫出繩子AB段對(duì)桿拉力F的力臂L.

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漁夫用繩子通過竹杠拉起漁網(wǎng),如圖所示,請(qǐng)?jiān)趫D上畫出繩子AB段對(duì)桿拉力F的力臂L.
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