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WOLFRAM|DEMONSTRATIONS PROJECT

Braking a Car

​
initial velocity
60
time
car distances
reaction distance=7.5m | distance for braking=23.8399m | distance to hit the person=30m
A car travels with velocity
v
. The driver see a person walking on the street. (You can drag the pedestrian to the left or right.) It takes the driver 0.45 seconds to react, during which the car continues at its original velocity. Then the driver brakes the car, with an acceleration of
-8.5
m/
2
s
, until the car stops. What is the total distance that the car needs in order to stop before hitting the pedestrian?
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