1. If a curve with a radius of 70 m is perfectly banked for a car traveling 65 km/hr, what must be the coefficient of static friction for a car not to skid when traveling 88 km/hr?
2. A box 1 with a mass of, m, is at the bottom of an incline at rest. A second box2 with mass, M, which is the double the size of box 1 slides down and will hit the box 1 as shown. Where does each box land? (shown in the picture)
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