6. Your car has a mass of 2000 kg, and its aluminum brakes have an overall mass of 5 kg and an initial temperature of 20

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6 Your Car Has A Mass Of 2000 Kg And Its Aluminum Brakes Have An Overall Mass Of 5 Kg And An Initial Temperature Of 20 1 (22.47 KiB) Viewed 14 times

6. Your car has a mass of 2000 kg, and its aluminum brakes have an overall mass of 5 kg and an initial temperature of 20°C. Assume all the mechanical energy that transforms into internal energy when the car stops is deposited in the brakes. What is the maximum initial speed the car can have before the brakes start to melt during an emergency stop? The specific heat of aluminum is 900 J/(kg °C), and its melting point is 660°C. Note: I mi/h = 0.447 m/s. A. 120 mi/h (01 2000x B. 52 mi/h C. 200 mi/h D. 95 mi/h 2.1 6.4471 melting E. 27 mi/h ن وفانا