Motion in one dimension, one shot!, Summaries of Physics

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MOTION IN ONE DIMENSION —_ DISTANCE (S) (Scalar) Length of path followed by particle = length of | path (See fig.) I] path B I path DISPLACEMENT (r) (Vector) Shortest Length of path followed by particle = length of 11"4 path. (See. fig.) SPEED (scalar) _ ds 1. Instantaneous speed ~e t = Total dis tance 2. Average speed = Total time oa Si tSat S, +S24+.Sn Vit) + Vote tence: Vat titty tee S$ S24 Sn Uy tty Hesccsseeeees th Vv Vz ~~ Vn . — Vt Va tee +V,, If tpaty Soe = ths = = >S n andIf $,=S)2—7Sn3 VEG tp tee VV. Vy 5 = _ 2V,¥) in case n = 2 VV VELOCITY V (vector qt.) dt 1, Instantaneous velocity = ~~ dt