|Mar24-11, 05:39 PM||#1|
Component vector method for resultant force
1. The problem statement, all variables and given/known data
An object has two ropes attached. One is on the x axis (positive) with a 60 lb force. One is 120* (Quadrant II) from the first rope with a 30 lb force. I have to find the resultant force and angle using the component vector method of addition NOT the parallelogram method.
2. Relevant equations
Fa + Fb = R
3. The attempt at a solution
I set up a table of components, but I am not sure if they are correct. I am just really confused as to how to approach this problem. I know how to do it using the parallelogram method, but it seems like some important piece of information is missing for doing it using the component vector method.
B= 60 lb
Ax = ??
Bx = 60 lb
Ay = ??
By = 0
|Mar25-11, 06:06 AM||#2|
hi argentnox! welcome to pf!
(try using the X2 icon just above the Reply box )
to find the component in a direction, always multiply by cos of the angle to that direction
|Mar25-11, 12:49 PM||#3|
Thank you, I will try that and see how I do. If it is okay, I will probably come back to make sure I got the correct answer. I figure if I got the answer correct, I must have done the work correctly. ;)
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