gc physics textbook chapter 3 problems (id: 92c77444e)

本题目来源于试卷: gc physics textbook chapter 3 problems，类别为 通用国际物理

[填空题]
$\text{ For the vectors given in Fig. 3-32, determine (a) }\overrightarrow{\mathbf{A}}-\overrightarrow{\mathbf{B}}+\overrightarrow{\mathbf{C}}\text{, (b) }\overrightarrow{\mathbf{A}}+\overrightarrow{\mathbf{B}}-\overrightarrow{\mathbf{C}}\text{, and (c) }\overrightarrow{\mathbf{C}}-\overrightarrow{\mathbf{A}}-\overrightarrow{\mathbf{B}}\text{. }$




$|\overrightarrow{\mathbf{A}}-\overrightarrow{\mathbf{B}}+\overrightarrow{\mathbf{C}}|$ =   
$\theta$ =    ${}^{\circ }$ below +x axis
$|\overrightarrow{\mathbf{A}}+\overrightarrow{\mathbf{B}}-\overrightarrow{\mathbf{C}}|$ =   
$\theta$ =    ${}^{\circ }$
$|\overrightarrow{\mathbf{C}}-\overrightarrow{\mathbf{A}}-\overrightarrow{\mathbf{B}}|$ =   
$\theta$ =    ${}^{\circ }$ below - x axis

参考答案:
空格1: 62.6±2%  空格2: 31±2%  空格3: 77.5±2%  空格4: 71.9±2%  空格5: 77.5±2%  空格6: 71.9±2% 


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