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 January 7th, 2014, 03:05 AM #1 Senior Member   Joined: Jan 2013 From: Italy Posts: 154 Thanks: 7 Trivial problem to obtain Distance from Velocity. Hi, i don't know if this is the right place to post this but, I want to know if i'm done right about this very trivial physic problem. Can you help me please? I wasn't so good about physics in high school, so now i'm trying to do physics in a rational way because I want to comprehend every passage that brings to obtain a particular formula. I have this basic problem: A train travels away at a velocity mph (miles per hour). At it is distance from us. Write the equation for the distance the train is from us in terms of time . So: reading this problem I can understand that we know the velocity, and that is . By definition, the velocity is the distance traveled divided by the time. So in a plot with space in function of time, this velocity, is the slope of the line in that one. Reading the problem, I don't know anything about the distance formula, so I want to obtain that from the velocity, that I call , and, by definition, it is the ratio of to : we know that so: from this last equation I can obtain the distance: this last equation I obtained is the equation of the distance. I think that this is the right way to follow to obtain it. is it right? many thanks for your patience!  January 7th, 2014, 11:58 AM #2 Global Moderator   Joined: May 2007 Posts: 6,805 Thanks: 716 Re: Trivial problem to obtain Distance from Velocity. It will be a lot quicker and clearer if you multiply through by t right after the second line to get: vt = S - So. Therefore S = So + vt. Tags distance, obtain, problem, trivial, velocity Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post aquhzie Calculus 1 March 15th, 2014 07:19 AM drawingquasar Algebra 1 December 4th, 2013 12:00 AM AamirAli Calculus 4 March 28th, 2013 06:40 AM mathkid Algebra 6 September 22nd, 2012 06:28 PM triplekite Algebra 10 December 27th, 2010 09:40 AM

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