Correct Answer - Option 2 : The maximum speed attained by a train during the run
Whenever we analyzed the motion of train movement, the following three-speed is very important:
Crest Speed: It is the maximum speed attained by the train during the run.
Average Speed: This speed deals with only actual run time with the distance between the stops and given as,
\(Average\;Speed = \frac{{distance\;between\;stops}}{{actual\;time\;of\;run}}\)
Schedule Speed: This speed deals with both actual run time as well as stop time with the distance between the stops and given as,
\(Schedule\;Speed = \frac{{distance\;between\;stops}}{{actual\;time\;of\;run + stop\;time}} \)
Obviously, Schedule speed can be obtained from average speed by including the duration of stops and always less than Average speed.
