Originally Posted by
xyzt
Originally Posted by
nerdhere
Hi. I really need help for this problem:
Four forces act concurrently at one point. Force A has a magnitude of 70 lb and is directed 30 degrees North of East; force B has a magnitude of 60 lb and is directed westward; force C has a magnitude of 50 lb and directed southward; and force D has a magnitude of 40 lb and direction 20 degrees measured in the sense from the negative yaxis toward the positive xaxis. What are the x and y components of the resultant of the four forces?
It was given as a quiz during our summer classes and I failed to answer it. My xcomponent was 64.30 and my ycomponent was 2.59. However the correct answers were 14.30 for the xcomponent and 52.59 for the ycomponent.
Thank you in advance. 


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Thank you for replying!
Yup, I know what you're talking about. In our quiz, everything I did was correct except for the table of values.
*Table of Values*
Force > xcomponent > ycomponent
A 70cos30 70sin30
B 60cos0 60sin0
C 50cos0 50sin0
D 40sin20 40cos20
Therefore, the summation of x is 64.30 and y is 2.59.
I really thought I was on the right track because I just followed what I've learned from class. Then when the answers came out, I was in total shock because I couldn't find the error/s in my table. So can you please help me? Thank you.