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  • 18-01-2024
  • Physics
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A skateboarder has a mass of 70 kg and is traveling at 12 m/s on a level road when coming in contact with a rough surface. After passing the rough surface the skateboarder is now traveling at 5 m/s. Determine the work done by friction on the skateboarder, in Joules. Round your answer to the nearest integer number.

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