Two forces magnitude of 10N. Their resultant is equal to 20N. Then angle between them is: ( answer with reason)

Two forces magnitude of 10N. Their resultant is equal to 20N. Then ang

1.	Two forces magnitude of 10N. Their resultant is equal to 20N. Then angle between them is: ( answer with reason)
Answer» R=√A^2+B^2+2ABcos©20^2=10^2+10^2+2×10×10×cos©400=100+100+200×cos©400-200=200cos©200/200=cos©1=cos©©=0therefore these TWO VECTORS are PARALLEL to each other

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Two forces magnitude of 10N. Their resultant is equal to 20N. Then angle between them is: ( answer with reason) ​

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Two forces magnitude of 10N. Their resultant is equal to 20N. Then angle between them is: ( answer with reason)