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Question: mechanicsstatics...

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Mechanics/statics
Problem 4 Consider vector R as shown in the figure. ra and rb are the position vectors of points A and B. (a) Express vectors ra, rb and R in the component-form (b) Calculate the dot products, ra R and rbR. (c) Calculate the cross products, ra x R and rbx R. Compare the results and give an explanation why the results should be equal. (d) Calculate the direction cosines of vector R. 0 B (8,10,-2)
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