- #1
donaldparida
- 146
- 10
Homework Statement
: [/B]Determine the resultant of three vectors of magnitude 1, 2 and 3 whose directions are those of sides of an equilateral triangle taken in order.Homework Equations
: [/B]R2 = A2 + B2 + 2 A B cos θ
tan α = B sin θ/(A+B cos θ)
The Attempt at a Solution
:[/B]https://drive.google.com/open?id=0B3IenBvKWb4PUG9kTUctcFJyLUk
The correct answer is: 1.732 units at an angle of 210 ° to the first vector. I have calculated the magnitude correctly but cannot match the direction.
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