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A 615 kg car was involved in an accident. The accepted coefficient of friction between concrete and rubber is 0.65. The skid marks left by the car are 18.6m long. How was was the car moving when it hit the brakes?

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The solution is provided in two different formats, .pdf and .doc. The answer is given step-by-step equationally with 250 words of explanation.

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The solution is attached below in two files. the files are identical in content, only differ in format. The first is in MS Word format, while the other is in Adobe pdf format. Therefore you can choose the format that is most suitable to you.

The friction force is given by:

Where N is the normal force. Since the car is moving on a horizontal surface, the normal force is the force the surface applies on the car due ...

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