Question

172 Prove that A-B = B.A. Show that A.B can be interpreted either as B times the component of A in the direction of B, or as A times the component of B in the direction of A Calculate the dot product of the two vectors, A.B, given below: (No units) a) b) (This takes only one or two lines.) c) 1) 2) 3) 4) 5) 6) A-20 along the +X axis, B = 15 at 370 above the +X axis. A-6 at 20° above the +X axis, B-10 at 70° above the +X axis. A-3 along the +X axis, B-4 along the +X axis. A = 4 along the +X axis, B-4 along the-X axis. A= 0.3 along the +X axis, B= 0.5 at 135 to A. A- 12 along the +X axis, B-7 along +Y axis.

Answer 1

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