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Q1. A 2000 kg car is travelling at 41.0 m/s and afterwards puts on the brakes and comes to a complete stop. The heat generated at the brakes because of stopping heats up the brakes. The mass of the brake system is 20.0 kg and has the specific heat of .200 kcal/kg degree C. What is the increase in temperature of the breaks?

Q2. A curve of radius 35 m is banked for a design speed of 64 km/h. If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely make curve?

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