- (1) The speed of a train is 30 km/h. How long will it take to cross a signal if its leng
is 25 m?
(ii) How long will a 50-m-long train travelling at 72 km/h take to cross a pole?
1
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Step-by-step explanation:
1.distance=25m
speed=30km/h
time=distance/speed
=25/30=0.8sec
2.same as 1 type
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