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x 1. O 1. l. l. . . A. . B. l. l. C. y 1. 作业解析 1. 离心调速器. 已知:. m 1 - 球 A 、 B 的质量; m 2 - 重锤 C 的质量; l - 杆件的长度; - O 1 y 1 轴的旋转角速度。. 求:. -  的关系。. x 1. O 1. l. l. . . A. . B. F T3. F ´ T1. F T2. l. l. B. C. C. m 1 g. m 2 g. F T1. y 1. 作业解析 1. 解:.

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O 1

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  1. x1 O1 l l   A  B l l C y1 作业解析1 离心调速器 已知: m1-球A、B 的质量; m2-重锤C 的质量; l-杆件的长度; - O1 y1轴的旋转角速度。 求: -  的关系。

  2. x1 O1 l l   A  B FT3 F´T1 FT2 l l B C C m1g m2g FT1 y1 作业解析1 解: 1、分析受力:以球B(或A)和重锤C 为研究对象,分析所受的主动力和 约束力

  3. FI FT3 F´T1 FT2 B C m1g m2g FT1 作业解析1 解: 2、分析运动:施加惯性力。 球绕O1y1轴作等速圆周 运动,惯性力方向与法向 加速度方向相反,其值为 FI=m1l 2sin 重锤静止,无惯性力。 3、应用动静法:

  4. FI FT3 F´T1 FT2 B C m1g m2g FT1 作业解析1 解: 3、应用动静法: 对于球 B 对于重锤 C

  5. 作业解析1 解:

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