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4. (7pts) If a 3000kg car is driving up a 60° incline with a constant acceleration of m and a coefficient of kinetic friction

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a-22m/s2 EF=0 I 0 O N=mgrost = (3000) (9.8) cos 600 0 = 14,700 N mg sint mgsint cast -fun= 0.12% 14,700 = 1764 N Efx - f ting

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