A motorcycle is traveling at a velocity of 5.0 m/s when a car swerves into its path. The driver breaks and it takes 3.0 seconds and a distance of 24 meters before the motorcycle comes to a complete stop. The mass of the motorcycle is 170 kg. How much work was done by the breaks to stop the motorcycle?

Question

Casey Barnes

Physics

9 March, 12:11

A motorcycle is traveling at a velocity of 5.0 m/s when a car swerves into its path. The driver breaks and it takes 3.0 seconds and a distance of 24 meters before the motorcycle comes to a complete stop. The mass of the motorcycle is 170 kg. How much work was done by the breaks to stop the motorcycle?

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Answers (1)

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Sarah Baker · Answer 1

Work = Force*Distance. Force = Mass*Acceleration. Acceleration = change in velocity/change in time. So Acceleration = 5/3. Force = 170 * (5/3). Therefore Work=170 * (3/5) * 24. So your answer comes out to 2304 Joules.