AnneFrank Posted September 30, 2010 Share Posted September 30, 2010 My sister-in-lawâs Mitsubushi Lancer GTS has a braking distance from 60 mi.h-1 to 0 mi.h-1 of 115 feet. What is its rate of acceleration needs to BE IN SI units i would appericate it if someone helped me :/ Link to comment Share on other sites More sharing options...
fastortoise Posted September 30, 2010 Share Posted September 30, 2010 0 (final velocity) = 60 squared (initial velocity) + 2a (acceleration) times 115 (distance)0 = 3600 + 230aa = -3600/230=-20i don't know how you're nutty units work but that's how you do it. Link to comment Share on other sites More sharing options...
AnneFrank Posted September 30, 2010 Author Share Posted September 30, 2010 THANK YOU SO MUCH i Link to comment Share on other sites More sharing options...
The Observer Posted September 30, 2010 Share Posted September 30, 2010 Just writing it down won't help you at all, just look at it and analyze what he did there and it will be more beneficial for you (especially for tests, quizzes, etc.) But yeah anyway this is probably going to get locked since this has been finished in just two posts, lol. Link to comment Share on other sites More sharing options...
das Posted September 30, 2010 Share Posted September 30, 2010 This thread is now : Awesome Physics formula sheets "Any people anywhere, being inclined and having the power, have the right to rise up, and shake off the existing government, and form a new one that suits them better. This is a most valuable - a most sacred right - a right, which we hope and believe, is to liberate the world."Abraham Lincoln Link to comment Share on other sites More sharing options...
Zaaps1 Posted September 30, 2010 Share Posted September 30, 2010 0 (final velocity) = 60 squared (initial velocity) + 2a (acceleration) times 115 (distance)0 = 3600 + 230aa = -3600/230=-20i don't know how you're nutty units work but that's how you do it. Well the question hasn't been fully answered so I guess I'll jump in. There isn't enough information to answer the question unless it tells you it has a constant acceleration. Anyway, the formula you need to apply is (final velocity)^2 = (initial velocity)^2 + 2(acceleration)(displacement) But of course, you'd have to convert your units first. 1 mile = 1609.344 meters = 5280 feet ~It's Super Effective! (The Zaaps Blog)~My YouTube Channel, where you get to watch me go around and make a fool out of myself and all comp capersGuides:~Yeah I wrote them once~Suggestions:~Yeah I made those once~ Link to comment Share on other sites More sharing options...
Laura Posted September 30, 2010 Share Posted September 30, 2010 While I am glad that you received your answer, please note for future reference that Tip.it does not allow users to post their homework assignments. Such assistance is, usually, best left to the professor or a tutor. :) Link to comment Share on other sites More sharing options...
Recommended Posts