Question
Asked Sep 23, 2019
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Consider the forces shown in the figure.

a.) Find the magnitude of the force F1 shown in the figure in Newtons.

b.) Find the magnitude of the force F2 shown in the figure in Newtons.

Frot =20 N
Free-body diagram
F2
Frot
F2
35°
F1
F1
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Frot =20 N Free-body diagram F2 Frot F2 35° F1 F1

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(a)The expression for cos35° from the right-angled triangle is cos350 F tot Or tot Here, F is the magnitude of vector F Substitute the numerical values in the above equation F(20 N) cos 35° =16.38 N

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Vectors and Scalars

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