Problem 92 of 7
Solve force/vector triangle problem three forces in equilibrium: two forces are 50 N and 70 N, and the angle between them is 100 degrees.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
use non-right triangle relationships.
Hidden until you reveal it.
Use non-right triangle relationships for resultant magnitude and direction.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Draw vectors tip-to-tail or parallelogram and identify triangle.
2. Find included or opposite angles as needed.
3. Apply Law of Cosines/Sines to magnitude and direction.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Scalar addition unless vectors are collinear.