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A 1400 kg car is moving at 12 m/s when the driver stops a car what increase in the thermal energy of the car and it surroundings results from a find the brakes to bring the car to a stop
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A 1400 kg car is moving at 12 m/s when the driver stops a car what increase in the thermal energy of the car and it surroundings results from a find the brakes to bring the car to a stop

User LittleBobbyTables
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2 Answers

5 votes

KE = 1/2 1400 (12)^2

KE = 100,800 J

Answer: 1.0 x 10^5 J


User Mostafa
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7.9k points
2 votes
KE = 1/2 mv^2

in this case, the initial kinetic energy which is converted to heat is

KE = 1/2 1400 (12)^2

KE = 100,800 J
User Moselle
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7.7k points
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