Two trains of length 190 m and 210 m respectively are running in opposite on parallel tracks. If their speeds are 40 km/h and 32 km/h respectively, in what time will they cross each other ?
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Answered by
13
dear friend
this is solve by the relative concept of linear motion
time=sum of length of train/relative velocity
relative velocity means
if train moves opposite direction add their speed and if same direction subtract high speed to low speed
now
time=(190+210)/{(40+32) x 5/18}
=400/20=20sec
this is solve by the relative concept of linear motion
time=sum of length of train/relative velocity
relative velocity means
if train moves opposite direction add their speed and if same direction subtract high speed to low speed
now
time=(190+210)/{(40+32) x 5/18}
=400/20=20sec
abhi178:
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Answered by
1
Answer:
they cross each other in 20 seconds.
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