NON coplanar forces, please i thanks

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Homework Help Overview

The discussion revolves around finding the resultant of three coplanar concurrent forces with specified magnitudes and directions. The forces include one acting north, one southwest, and one southeast, with the goal of determining the resultant in easterly and northerly directions.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to calculate the resultant forces but expresses confusion about the correct approach, particularly regarding the addition of forces in different directions. Some participants question the accuracy of the initial calculations and suggest the need to resolve the vectors into vertical and horizontal components.

Discussion Status

The discussion is ongoing, with participants providing feedback on the original poster's attempts. There is a recognition of misunderstanding regarding vector resolution, and some guidance is being offered to clarify the concepts involved.

Contextual Notes

The original poster indicates a lack of experience with forum discussions and diagramming, which may affect the clarity of their explanations. There is also a mention of difficulty in understanding vector resolution methods.

jdhen
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Homework Statement



Find the resultant of three coplanar concurrent forces, f1 north a magnitude of 8 grams, F2 of magnitude 12 grams and acting southwest f3 of magnitude 5 grams and acting southeast Find the resultant in an easterly and northerly direction.

known values:
F1 = 8 grams North
F2 = 12 grams Southwest
F3 = 5 grams Southeast

Homework Equations


R=f1+f2+f3

N

/|\ (arrow up sorry don't know how to put a diagram here)
|
| F1 = 8 grams
|
|
/ \
/ \ F3 = 5 grams
/ \
F2=12 grams / \
V V

The Attempt at a Solution



In norhtern resultant: R=8 + 12 + 5 = 25 grams
In eastern am confused if i am going to add it again? and in my first eauation don't know if am right? please help me thanks
 
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oh no... my diagram... :( sorry this is my first time to join in a forum so don't know how to put a diagram.. but please help me thanks
 
Your northern resultant is wrong. All the forces are not acting along the same direction.
Do you know how to resolve the vectors along vertical and horizontal direction?
 
rl.bhat said:
Your northern resultant is wrong. All the forces are not acting along the same direction.
Do you know how to resolve the vectors along vertical and horizontal direction?
thanks for the reply, actually, no, i tried to search anything in the net but i can't understand.. please help me... thanks again
 

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