Question
Mon March 04, 2013 By:
 

At a distance L=400m from the traffic lights the brakes are applied to a locomotive moving at a velocity v=54km/hr.determine the position of a locomotive relative to the traffic lights 1 minute after the application of the brakes if its acceleration is -0.3m/s/s

Expert Reply
Mon March 04, 2013
u=54km/h=15m/s
L=400m
t=60 sec
a=-0.3m/s2
s=15x60-1/2  x60x60x 0.3
  =360m
 
so the locomotive will be 40 m away from the traffic signal.
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