DeLorean Acceleration in Back to the Future III

[Smeagol3]

For a semester project in my physics class, I am determining whether this is physically possible.

In Back to the Future III, Marty and Doc use the train to push the DeLorean, and must accelerate to 88 mph before they fly off the cliff.

I'm trying to figure out whether it's realistic for a train to accelerate to 88 mph in that distance.

I know the starting velocity is 0 and the ending velocity is 88 mph. I need to figure out the mass of the train and the distance.

For the train I'm planning on finding a normal steam train weight for that time, and for distance, I plan to estimate it based on Doc's scale model.

Do you think this will be difficult to figure out, and do you have any advice?

Thanks,
Smeagol3

 

[Stovebolt]

For a semester project in my physics class, I am determining whether this is physically possible.

In Back to the Future III, Marty and Doc use the train to push the DeLorean, and must accelerate to 88 mph before they fly off the cliff.

I'm trying to figure out whether it's realistic for a train to accelerate to 88 mph in that distance.

I know the starting velocity is 0 and the ending velocity is 88 mph. I need to figure out the mass of the train and the distance.

For the train I'm planning on finding a normal steam train weight for that time, and for distance, I plan to estimate it based on Doc's scale model.

Do you think this will be difficult to figure out, and do you have any advice?

Thanks,
Smeagol3

Sounds like a fun project.

My guess is that you will have a seemingly infinite number of variables, so I would advise you to factor out as many as you can unless you feel they are critical to your project. Things like aerodynamic drag and wheel-track friction will make the project more realistic in concept, but if you use rough estimates for these values you may actually make your answer less accurate. If you do ignore a factor, make sure you make a notation of it in any reports and give a reason for not using it.

You might find some old engineering guide books to be of value. I did a quick search and found a 1916 American Civil Engineer's Pocket Book on Google Books with some info on old locomotives http://books.google.com/books?id=1l...oi=book_result&resnum=10&ct=result#PPA203,M1"

Remember that the power output of a steam engine is going to be related to the pressure the boiler can reach. I think that will likely be the theoretical limiting factor for this project.

Good luck and have fun!

 

[thomate1]

I appreciate your interest in determining the physical possibility of the DeLorean acceleration in Back to the Future III. This is a great project for your physics class and will require some careful calculations and estimations.

To start, it is important to note that the train in the movie is a steam train, which means it runs on steam power and has a slower acceleration compared to modern trains. This may make it more challenging to reach 88 mph in a short distance.

In order to accurately determine the mass of the train, it would be helpful to research the specific type of train used in the movie and find its weight. If that information is not available, estimating based on a normal steam train weight from that time period would be a good approach.

As for the distance, using Doc's scale model as a reference is a good idea. However, it is important to also consider the terrain and any potential obstacles that may affect the train's acceleration.

In terms of advice, I would recommend breaking down the problem into smaller parts and using equations such as F=ma and v=at to calculate the necessary variables. It may also be helpful to consult with your physics teacher or a physics expert for guidance and clarification.

Overall, this project may be challenging but it is definitely possible with careful research and calculations. Good luck!