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25-10-2020
Physics

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A skier is coasting at 4.0 m/s. She reaches the crest of a hill and she accelerates downhill at a rate of 0.20 m/s^2 for 10 s. How far does she travel down the hill during the 10 s?

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pfellas pfellas

25-10-2020

s = ut + 1/2 a t ^2
s = (4x10) + 1/2 x 0.2 x 100 = 400 + 10 = 410 m

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