After driving 20.0 km west, a car turns southwest and proceeds another 50.0 km. What is the displacement (in kilometers) of the car from the point of origin (magnitude only)?

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  1. find the N,S, E, W components

    W: 20km+50cos45
    S: 50sin45

    now, magnitude= sqrt( W^2 + S^2)

  2. S=1/2gt^2

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