Question

using the parellelogram law of forces find the resultant of the vector represented by 9N and 10N acting in the direction and making an angle of 600
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Answer 1

notice another thing i have taken ø between vector A and C if i need to know the angle between vector B and C ,say angle a laphe

Explanation:

a=tan-1=asinø

B+ACoso or justa =60 degrees=Ø