Posted by **Nanhi** on Sunday, September 6, 2009 at 12:04pm.

Consider three force vectors ~ F1, ~ F2, and ~ F3.

The vector ~ F1 has magnitude F1 = 86 N and

direction θ1 = 169◦; the vector ~ F2 has magni-

tude F2 = 46 N and direction θ2 = 240◦; and

the vector ~ F3 has magnitude F3 = 45 N and

direction θ3 = 132◦.

All the direction angles θ aremeasured from

the positive x axis: counter-clockwise for θ >

0 and clockwise for θ < 0.

Draw the vectors to scale on a graph to

determine the answer.

What is the magnitude of the resultant vec-

tor k~F k, where ~F = ~ F1 + ~ F2 + ~ F3 ?

^^^ i got 137.89m

now how do i Give the angle in degrees, use coun-

terclockwise as the positive angular direction,

between the limits of −180◦ and +180◦ from

the positive x axis.

What is the direction of this resultant vec-

tor ~F ?

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