Find A B (Vectors) if A= 2 and B= 5 and A*B = 8 - Physics - Motion In A Plane

Question

Find A B (Vectors) if A= 2 and B= 5 and A*B = 8

Apurba Paul · Accepted Answer

A×B is given by A×B=ABsinθ=8sinθ=8AB=82×5=810Now we know that A·B=ABcosθ=AB1-sin2θ=10×1-64100=10×36100=10×610=6

Find A.B (Vectors) if A= 2 and B= 5 and A*B = 8.