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The resultant of two vectors A andB is perpendicular to A and equal tohalf of the magnitude of B. The anglebetween A and B is(A) 120°(B) 150(C) 90°(D) 1350 |
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Answer» Given, result vector of a and b is perpendicular to a and its MAGNITUDE is half of b. Now, direction of vector in triangle LAW of addition is unique direction of each vector.so,angle between TWO is 180- c.let c is angle between two given line.since required angle is angle between two vector are in same plane which is 180-c.hence USING sinc=mag(resultant/vector b)=b/2/b=1/2,c=30,hence 180-c=180–30=150 hope this answer HELPS you please mark this answer as brainalist and follow me to answer your more questions |
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