Two vectors each of magnitude 4 0 cm are directed at
Two vectors, each of magnitude 4.0 cm, are directed at a small angle a below the horizontal as shown. (The grid is 1 cm on a side.)
(a) Let C = A + B. Sketch the direction of C and estimate its magnitude.
(b) Let D = A - B. Sketch the direction of D and estimate its magnitude.
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