2. Two mountains are at elevations of 850m and 750m above the valley between them. A ski run extends from the top of the higher peak to the top of the lower one, with a total length of 3.2km and an average slope of 30 degrees,(adsbygoogle = window.adsbygoogle || []).push({});

a) A skier starts from rest on the higher peak. At what speed will be arrive at the top of the lower peak if he just coasts without using poles?

b)How large a coefficient of friction would be tolerable without preventing him from reaching the lower peak?

what i've done:

2a) (m)(9.8)(850) = (m)(9.8)(750) + (0.5)(m)([tex]vf^2[/tex])

[tex]vf^2[/tex] = 1960

[tex]vf[/tex] = 44.27 m/s

b)I am stuck on this one.

Thanks in advance for your help.

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# Homework Help: Ski Slope question

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