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September 20, 2014

September 20, 2014

Posted by **Jill** on Sunday, November 22, 2009 at 3:49am.

b) A car braked with a constant deceleration of 40 ft/s^2 and produced skid marks measuring 160 feet before coming to a stop. How fast was the car traveling when the brakes were first applied?

- calc -
**drwls**, Sunday, November 22, 2009 at 9:41ama) Vo = 50 mph = 73.33 ft/s

Vo = sqrt (2 a X)

X = Vo^2/(2 a)

b) Use the Vo formula above, with X = 160 ft. The answer will be in ft/s.

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