A truck with mass m has a brake failure while going down an icy mountain road of constant downward slope angle a (Fig. 7.40). Initially the truck is moving downhill at speed vo. After careening downhill a distance L with negligible friction, the truck driver steers 1he runaway vehicle onto 8 runaway truck ramp of constant upward slope angle IJ. The truck ramp has a soft sand surface for which the coefficient of rolling friction is μr what is the distance that the truck moves up the ramp before coming to a halt? Solve using energy methods.

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Ski's Distance 2 Icy road Truck ramp