# Physics problems

 10 October 2003 sutabi Blender God   portfolio Joseph Montanez Web Developer Helmsdale, United States Physics problems I am wanting a constant acceration no matter incline The incline is 15 degree but I dont know it 15 degrees, the gravity is earth gravity and the mass is 1. The time interval = .1 I just take the current position - last stored position to find the x and y displacment so the resulting force or net force = mass*gravity*(y/sqrt(x*x+y*y) Note: (y/sqrt(x*x+y*y) = cos(theta) so force = .855 and veloctiy (x axis) = .29 Now lets say I want velocity to be a constant 1.00 So displacment(x axis) = v/t = 1/.1 = 10 and I can't calculated acceration until the postions are stored so A = final velocity - initial velocity/time interval NOW! here where I am lost if I can figure the force needed for 15 degress and the velocity is .25 how do I figure out the force need to keep velocity at 1.00 with x degrees __________________ | AnimeReign.com | High Quality Anime Streams & Downloads share quote
 10 October 2003 ajk48n Frequenter   portfolio Adam Katz Freelance 3d Animator/Motion Graphics Designer Sydney, Australia I'm not quite sure if this helps or not, but you said: so the resulting force or net force = mass*gravity*(y/sqrt(x*x+y*y) Note: (y/sqrt(x*x+y*y) = cos(theta) Wouldn't this also mean that force = mass*gravity*cos(theta) If it did, then coudn't you find the force by just plugging the angle of your ramp into the equation? Also, in this: So displacment(x axis) = v/t = 1/.1 = 10 and I can't calculated acceration until the postions are stored so A = final velocity - initial velocity/time interval You say you can't find A until you have the positions, but can't you assume that one position will be (0,0), and then find the other position based on veloctiy being 1, and you angle being x. share quote
 01 January 2006 CGTalk Moderation Expert Thread automatically closed This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum. __________________ CGTalk Policy/Legalities Note that as CGTalk Members, you agree to the terms and conditions of using this website. share quote

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off CGSociety Society of Digital Artists www.cgsociety.org Powered by vBulletinCopyright ©2000 - 2006, Jelsoft Enterprises Ltd.