CBSE Class 11-science Answered
what is the angle between vector A and resultant of vector A+B AND vector A-B ?
Asked by ABHILASHA | 05 Aug, 2019, 08:57: PM
Expert Answer
Vectors are typed in Bold, i and j are unit vectors along x and y direction respectively
Let A = a i and B = c i + d j
A + B = (a+c) i + d j
A - B = (a-c) i - d j
resultant of (A+B) and (A-B) = 2a i
Hence resultant of (A+B) and (A-B) is parallel to A , i.e. angle between resultant vector of A+B and A-B and vector A is zero
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