- #1
Color_of_Cyan
- 386
- 0
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
(2162 + 11.52)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?
Last edited by a moderator: