阿摩線上測驗
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阿摩線上測驗
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You might need to use the law of cosines in this exam: c2 = a2 + b2 - 2ab cos θ,
where θdenotes the angle between sides of length a and b and opposite the side of
length c, to solve the Dynamics problem(s).
1. For the beam shown in Figure 1, answer the following questions: