Chap2-Example-Test-Problem

Chap2-Example-Test-Problem - 80 ft skid marks with 80...

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Chapter 2 Example Test Problem A car is traveling up a 2% grade at 70 mi/h on good, wet pavement . The driver tries to brake to avoid a hitting stopped traffic in all lanes that is 250 ft ahead . The driver’s reaction time is 0.5 s . At first, when the driver applies the brakes, a software flaw causes the anti-lock braking system to fail (brakes work in non-anti-lock mode) leaving
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Unformatted text preview: 80 ft skid marks with 80% efficiency . After the 80 ft skid, the anti-lock brakes work with 100% efficiency . How fast will the driver be going when the stopped traffic is hit if the coefficient of rolling resistance is constant at 0.013 ? (assume minimum theoretical stopping distance and ignore aerodynamic resistance)...
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