Let us name three perpendicular directions as right,up, and toward you as you might name
Chapter 11, Problem 3(choose chapter or problem)
Let us name three perpendicular directions as right,up, and toward you as you might name them whenyou are facing a television screen that lies in a verticalplane. Unit vectors for these directions are r^, u^ , and t^,respectively. Consider the quantity (23u^ 3 2t^). (i) Isthe magnitude of this vector (a) 6, (b) 3, (c) 2, or (d) 0?(ii) Is the direction of this vector (a) down, (b) towardyou, (c) up, (d) away from you, or (e) left?
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