Homework Answers
a) a = 2L/t2 = 2 x 3.7/(1.73)2 = 2.4725 m/s2
b) friction force = mgsin31 - ma = 3.3 x 9.8 x sin31 - 3.3 x 2.4725 = 8.497 N
c) u = F/mgcos31 = 8.497/(3.3 x 9.8 x cos31) = 0.3065
d) speed = at = 2.4725 x 1.73 = 4.2775 m/s
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