A skier is accelerating down a 300deg hill at a 420 ms2a, Ask an Expert

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A skier is accelerating down a 30.0° hill at a = 4.20 m/s^2.

(a) What is the vertical component of her acceleration? (in m/s^2) (downward)

(b) How long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 320 m (in seconds)?

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