Question

can any one solve the problem

Answer 1

distance and time is given distance is 100m and time is 5s
(1) speed of the train
as we know speed = distance/time
speed=100/5
speed=20m/s
(2) the time it will take to cross a bridge of 500 m
speed =distance/time
speed=500/time
20=500/time
time=20/500
time=1/25
time =0.04 second