Thursday, April 19, 2012

Surfing For Reaction Distance Car?

Daniel asks…Math....physics?Suppose a car is traveling at 10.0 m/s, and the driver sees a traffic light turn red. After 0.530 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 8.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first notices the red light?Nancy answers:You need a few simple formulas

v(t) = at + v(0) (You need this to determine how long it takes the car to stop)

x(t) = (1/2) at^2 + vt +

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