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It doesn't matter how long she maintains her acceleration.

As long as she continues to accelerate at 1.2 m/s2 parallel to the slope,

the vertical component of her acceleration is

1.2 sin(11°) = 0.229 m/s2 (rounded)

and the horizontal component is

1.2 cos(11°) = 1.178 m/s2(rounded)

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Q: A skier squats low and races down an 11 degree ski slope during a 2s interval the skier accelerates 1.2m per sec squared what is the horizontal component of the skier's acceleration?
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