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Color_of_Cyan

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## Homework Statement

http://imageshack.us/a/img5/629/meprob25.jpg

A. Determine magnitude of resultant force (of F1 and F2 acting on the point)

B. Resolve F1 into components along the u and V axes and determine the magnitudes of these components.

C. Resolve F1 into components along the u and V axes and determine the magnitudes of these components.

## Homework Equations

law of sines,

Pythagorean theorem

## The Attempt at a Solution

I just need help with parts B and C.

A goes :

Fx = 150(cos60) + 200(cos45)= 216 lb

Fy = 150(sin60) + 200(sin45) = -11.5 lb

(216

^{2}+ 11.5

^{2})

^{1/2}means

R = 216 lb at 3 deg under the U axis because tan

^{-1}(-11.5/216) = -3 For part B the only guide to find how to solve these before is use law of sines, but

trying to solve for resolving the components of F1 along a and B:

200 / (sin45) = F(u) / 1

F(u) = 282 lb

but it is supposedly wrong.

Any hints?

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