Calculate Train Time 48km Trip

[physicsss]

Calculate the time it takes a train to make a 48 km trip in the following two situations. Assume that at each station the train accelerates at a rate of 2.0 m/s2 until it reaches 50 km/h, then stays at this speed until its brakes are applied for arrival at the next station, at which time it decelerates at -3.0 m/s2. Assume it stops at each intermediate station for 20 s.

(a) The stations at which the trains must stop are 0.60 km apart.

I'm confused...

 

[Pyrrhus]

This is a step by step problem. What do you know? do you know constant acceleration equations?

 

[Gokul43201]

physicsss, if you try and start on the problem, we can guide you further. If you don't tell us what you've tried or what ideas you have, we really can't help you.

 

[Banana]

I'd start with sketches dividing the trip up into accelerating, constant and deccelerating parts. My sketch would look kind of like a number line, and I'd write in what was given and what I could find out about each part.