VectorHard
Question
A force F = 2î + ĵ − 
acts at a point A whose position vector is 2î − ĵ. The moment of F about origin is-
acts at a point A whose position vector is 2î − ĵ. The moment of F about origin is-Options
A.î + 2ĵ + 4
B.î − 2ĵ + 4
C.î + 2ĵ − 4
D.î + 2ĵ − 4
More Vector Questions
If the vectors = î + aĵ + a2, = î + bĵ + b2, = î + cĵ + c2 are three non-coplanar vectors ...Let the vectors and are at right- angle, then what is value of m so that + m and + are at right angle-...Let and be vectors such that . If and = 5, then is...The values of a, for which the points A, B, C with position vectors and respectively are the vertices of a right angled ...The p.v. of four points A,B,C,D are respectively 2î + ĵ, î − 3ĵ, 3î + 2ĵ and î ...