Recent content by Sifuejos

Yes but you are needed to start with at least one angle and none are given except for the 15 degrees South West but by the diagram you used, it does not appear to have nothing to do with the triangle <Doe

I agree with everything you did on the first problem. But on the second one, how can you apply law of cosines to find green angle <Doe If you need 3 sides to find an angle yet you are only given 2 sides?

Pic Straight out of the textbook

It doesn't say anything in the book. The only degree that it gives me for the South side is 15 Degrees that it makes in comparison to F1+F2+F3

Actually no...

If there was a formula for this situation then it'll be great. I tried searching up problems like these but they're college problems and really confusing stuff. I'm not even in a physics class yet

I guess..I'll leave it for my physics teacher to solve next year! Thank you for your help though ^-^

I'm guessing that's the angle between F1+F2+F3 and F3, That's exactly how the problem was stated and drawn as. I really don't know what's going on

Is it the book that stated that problem incorrectly? I still don't know how or why they got that answer

F1+F2 is equal to the resultant. I use the resultant, 32.8 and 40 into the law of cosines equation to get F1+F2+F3 which then i follow to add with 40 and then subtract the original North force 32.8 from the south force that would be 70.33 and is equal to 37.53 (The answer that is given in the book)

Problem in the book It's in the attachments

Net force problem Homework Statement The following were given, 30 Dynes 15° North west, 20 Dynes 15° North East, and 40 Dynes 15° South west. Fine the Net force Homework Equations Parallelogram Method, Law of cosines The Attempt at a Solution You have to find the force between 30...

Yes I'm sorry, it's 30 dynes North west, 20 dynes North east, and 40 dynes South west, in the problem in my book, they used the parallelogram method in order to solve it, connecting the 30 and 20 dynes together as a parallelogram and then connected it as a parallelogram (the 40 dynes) back to...

Homework Statement There are only 3 forces acting on an object. The forces are 20.0 dynes E15°, 30.0 dynes W15°, and 40.0 dynes S15°W [b]2. Relevant equation I've tried using the parallelogram method The Attempt at a Solution When i did the parallelogram method i got...