Net Work & Kinetic Energy Video Lessons

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Problem: At an accident scene on a level road, investigators measure a cars skid mark to be 93 m long. It was a rainy day and the coefficient of friction was estimated to be 0.36.Use these data to determine the speed of the car when the driver slammed on (and locked) the brakes.Why does the cars mass not matter?

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At an accident scene on a level road, investigators measure a cars skid mark to be 93 m long. It was a rainy day and the coefficient of friction was estimated to be 0.36.

Use these data to determine the speed of the car when the driver slammed on (and locked) the brakes.

Why does the cars mass not matter?

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