telephone pule!
2. A train 300 m long is travelling at a speed of 90 km/h. How long will it take to cross a
signal post
?
Answers
Answered by
5
Answer:
12second
Step-by-step explanation:
d=300m
speed=90km/he
=(90×5/18)m/s
=25m/s
time =300/25=12seconds
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