Which one of the following expressions gives the magnitude of the displacement when a…

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

Which one of the following expressions gives the magnitude of the displacement when a particle moves from point (x1,y1)(x_1,y_1) to point (x2,y2)(x_2,y_2) in a plane? (a) (x2+x1)2+(y2+y1)2\sqrt{(x_2+x_1)^2+(y_2+y_1)^2} (b) (x2−x1)2+(y2−y1)2\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} (c) ∣x2−x1∣+∣y2−y1∣|x_2-x_1|+|y_2-y_1| (d) x22+y22\sqrt{x_2^{2}+y_2^{2}}

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