Re: equation of motion problem
- To: mathgroup at smc.vnet.net
- Subject: [mg37615] Re: equation of motion problem
- From: Mark Westwood <MarkCWestwood at compuserve.com>
- Date: Wed, 6 Nov 2002 06:55:54 -0500 (EST)
- References: <aq86sq$e5i$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Chad The most straightforward way to 'solve' your equation is to translate it into Mathematica syntax, along the lines of: y[t_] := ((g + dragForce)(t^2)/2)+(t v0)+y0 For this to work correctly you'll need to define values for the constants g, dragForce, and v0. Of course, if y0 is really always 0 you could simplify the equation by dropping the term. I'm a little puzzled by your question, since you suggest that you wish to input a height and have returned a velocity - but you name the parameter 't' which looks awfully like time to me. Hope this helps some, if there's more to the question do post again. Regards Mark Westwood Chad Eimers wrote: > > Hello, > I need help using Mathematica. I'm trying to solve a standard equation of > motion problem for a decelerating particle. I want to input a specified > height, and find a corresponding initial velocity > > y[t]=-(g+Drag force)*(t^2)/2+v0*t+y0 > > y0 is always equal to 0. > > Can you help? > > Chad