Better Students Ask More Questions.
A train travels along a straight horizontal track with constant acceleration. Points A,...
A train travels along a straight horizontal track with constant acceleration. Points A, B and C are on the track with B between A and C. The distance AB is 1200 m and the distance BC is 2500 m. As the train passes B, its speed is 26ms–1. The train takes 60 s to travel from A to B.
a) Find the speed of the train as it passes A.
1 Answer | add yours
See the image attached with the following calculations.
Let us say the speed of train at A is Vm/s.
It is given that the distance between A and B is 1200m
The area of the time velocity graph represents the distance travelled.
`V+26 = 40`
So the speed of the train at A is 14m/s
Posted by jeew-m on August 6, 2013 at 9:01 AM (Answer #1)
Join to answer this question
Join a community of thousands of dedicated teachers and students.