a railway train 50 m long passes over a bridge 250 m long at the rate of 12km/h.time taken???
Asked by | 1st May, 2008, 09:13: PM
Velocity = 12km/hr = 3.33m/sec
total distance travelled to cross the bridge = 250m +50m = 300m
speed = distance / time
time = distance / speed
= 300m /3.33ms-1
= 90.09 sec.
Answered by | 26th May, 2008, 02:47: AM
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