Question

Find the length of the platform which a train 100m traveling at 45 km/hr crosses in 25 seconds

Answer 1

Answer:

212.5 m

Explanation:

take the length of platform as x

S=x+100 m

t=25 sec

v=45 kmph

 =12.5 m/s

S=vt

 =12.5×25

 =312.5

x+100=312.5

x=312.5-100

 =212.5 m

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