Boom-Boom Slapshot, Canadian hockey star, slides down a 50m long ice covered hill on his skates. The frictionless hill is inclined at 35° to the horizontal. Once he reaches the bottom of the hill, the ice is covered with deep snow that has a coefficient of kinetic friction of .50(adsbygoogle = window.adsbygoogle || []).push({});

How far into the snow will BoomBoom go before coming to rest?

Equations

acceleration = fparallel / mass

vf^2 = 2a Δd

f = µFN

FN = opposite of Fg which is mass x 9.8

Attempt

I drew out the problem and came to the conclusion that since I was working with an inclined plane that the mass of the hockey player didnt matter. I figured out (at least im pretty sure) that the acceleration is Sin35 * 9.8 = 5.62m/s

Now I just dont know how to figure out the negative acceleration when he hits the snow. Because in order to calculate force friction, I need to know his mass. If someone could help me out it would be much appreaciated! Thank you

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# Physics 40S inclined Plane Problem. Please help!

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