Grade 12Mechanics
What is the sum of squares of cosine angles made by the force vector with the coordinate axis ?????
What is the sum of squares of cosine angles made by the force vector with the coordinate axis ?????
1 Answer
Vikas TU
Dear student
The sum of the squares of the cosines of the vector will give you the squares of the components in the numerator, and the vector’s magnitude’s square in the denominator. But the numerator sum is equal to the vector’s magnitude’s square. Thus, the answer = 1.
Hope this helps
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