Below is the solution;
Fp = Mg*sin 0 = 0.
Fn = Mg*Cos 0 = Mg = Normal force.
Fk = u*Fn = 0.50*Mg.
Fp-Fk = M*a.
0-0.5Mg = M*a, Divide by Mg:
-0.5 = a/g = a/-10, a = 5 m/s^2.
V^2 = 60^2 - 10d.
0 = 3600 -10d, d = 360 m.
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