A skier is moving at 85 km/hr straight down a tall mountain having a slope of 60 degrees. At what rate is the magnitude of the vertical component of his trip decreasing?(adsbygoogle = window.adsbygoogle || []).push({});

I just don't understand exactly how to find it. The wording doesn't make sense to me and I don't know where to start.

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# Homework Help: Rate magnitude of vertical component

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