Question

9. A passenger train, 150m long, passes a railway platform, 200 m long, in 35 seconds.
Find (i) speed of the train in km/hr. ​

Answer 1

Answer:

distance = length of the train + the length of the platform

that's mean distance = 150m+200m=350m

now given time is 35seconds

formula speed=distance/time

speed =350/35

speed of train is= 10 m/sec

but we have to answer the value of speed in km/hr so we need to convert the speed.

formula to convert speed(from m/s) to speed in km/hr

formula = speed(in m/s)*18/5

= 10*18/5

=36km/hr

answer 36km/hr