A train 420 m long is running with a speed of
36 km/h. In what time will it cross a telephone
pole
Select one:
a. 18 secs
b. 24 secs
C. 42 secs
d. 36 secs
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Step-by-step explanation:
36 km/hr =36×1000/(60×60) m/s
=36000/3600 m/s
=10 m/s
speed=distance/time
10=420/t
therefore t=42 secs
correct option is C
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