the length of train os 200 m. it can cross an electric pole in 10 sec it cross another train coming from opposite direction of same length in 9 sec. fimd the speed of other train
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speed of other train is 24.44m/sec^2
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hi
speed of train = 200/10= 20m/s = v1
speed of other train = v2
relative of both trains = v1+v2
distance = 200+200= 400m
time = 9sec
v1+v2=400/9
20+v2= 400/8
v2 = 400/9-20
v2 =44.4444-20
speed of other train = 24.4444
speed of train = 200/10= 20m/s = v1
speed of other train = v2
relative of both trains = v1+v2
distance = 200+200= 400m
time = 9sec
v1+v2=400/9
20+v2= 400/8
v2 = 400/9-20
v2 =44.4444-20
speed of other train = 24.4444
answer is 88 km/hr
in si unit it is 87.999km/hr and in cgs unit it is 24.4444m/s
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