... [vx' vy' v,'] The unit vectors of one set of co-ordinates is expressible in terms of the unit vectors of another set of co-ordinates; thus i' = alli+alj+a13k ... Modulus of rigidity 221 Mohr’s circle 224 Momentum 21 Momentum, conservation of 111 Momentum, linear 111, 192 Momentum, moment of 11 1,192 Moment of force 37 Moment of inertia ... Multiplication of matrices [A][B] then the elements of [C] are defined by C,j = U,k bkj where k equals the number of columns in [A], which must also equal the number of rows in...