Posted by **tyler** on Tuesday, August 21, 2012 at 9:38pm.

A ranger in a national park is driving along at 17.9 m/s when a deer jumps into the road 65. m ahead of the vehicle. After a reaction time of t seconds, the ranger applies her brakes, which produce an acceleration of -2.8 m/s2. What is the maximum reaction time she can have if she is to just miss hitting the deer?

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