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Determine the magnitude of the projection of the vector force F = 100N, onto u axis, from the figure given below.

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Determine the magnitude of the projection of the vector force F = 100N, onto u axis, from the figure given below.

(a) 96.6N

(b) 60N

(c) 100N

(d) 70.7N

I got this question in final exam.

I would like to ask this question from Dot Product and Cross Product in division Force Vectors of Engineering Mechanics

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Right option is (d) 70.7N

To explain: The component of the force in u axis, it is equal to 100cos(45˚). We need to consider the triangle and then accordingly apply the trigonometry. This is one of the ways of resolving the components.

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