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To solve a problem involving the motion of a particle, S F = ma should be replaced by equations containing scalar quantities. Using rectangular components of F and a, we have. S Fx = max S Fy = may S Fz = maz . . . x. y. . P. . . . an. O. at. . . . . . x. y. z. . . . . ax. ay. az. P. . .
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