20 points !
an engineer in a locomotive sees a car stuck
on the track at a railroad cro...
20 points !
an engineer in a locomotive sees a car stuck
on the track at a railroad crossing in front of
the train. when the engineer first sees the
car, the locomotive is 380 m from the crossing
and its speed is 11 m/s.
if the engineer’s reaction time is 0.43 s,
what should be the magnitude of the minimum deceleration to avoid an accident?
answer in units of m/s^2
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