# S.O.S. Mathematics CyberBoard

Your Resource for mathematics help on the web!
 It is currently Fri, 24 May 2013 10:25:05 UTC

 All times are UTC [ DST ]

 Page 1 of 1 [ 4 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Uniform MotionPosted: Mon, 7 Sep 2009 04:02:13 UTC
 Member

Joined: Sat, 13 Sep 2008 00:23:07 UTC
Posts: 33
Two cars are traveling from point A to point C, moving with uniform motion throughout the entire trip. Point B is inbetween A and C. The distance from A to B is 25 km, and from B to C is 40 km. Car one leaves A at 12:00 and hits B at 12:20. Car 2 leaves A at 12:10 and hits B at 12:27. Which car will arrive at point C first?

Yet another tricky one. I said that they would both hit C at virtually the same time given that Car 1 goes 25km/20min or 1.25 km/min and Car 2 goes 25 km/17 min or 1.47 km/min. 40 km/17 min = 2 min and 40 km/20 min = 2 min. Given that the motion is uniform, don't they hit at the same time?

Top

 Post subject: Posted: Mon, 7 Sep 2009 05:18:01 UTC

Joined: Sat, 26 Apr 2003 22:14:40 UTC
Posts: 2063
Location: El Paso TX (USA)

_________________
The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark. - Michelangelo Buonarroti

Top

 Post subject: Posted: Tue, 8 Sep 2009 21:43:49 UTC
 Member of the 'S.O.S. Math' Hall of Fame

Joined: Sun, 22 Jun 2003 18:00:06 UTC
Posts: 3461
Location: North TX
nice graph Helmut ... what program did you use to make it?

Top

 Post subject: Posted: Wed, 9 Sep 2009 03:59:51 UTC
 Member

Joined: Sat, 13 Sep 2008 00:23:07 UTC
Posts: 33
Thank you, thank you. Most helpful. ^___^

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 4 posts ]

 All times are UTC [ DST ]

#### Who is online

Users browsing this forum: No registered users

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forum

Search for:
 Jump to:  Select a forum ------------------ High School and College Mathematics    Algebra    Geometry and Trigonometry    Calculus    Matrix Algebra    Differential Equations    Probability and Statistics    Proposed Problems Applications    Physics, Chemistry, Engineering, etc.    Computer Science    Math for Business and Economics Advanced Mathematics    Foundations    Algebra and Number Theory    Analysis and Topology    Applied Mathematics    Other Topics in Advanced Mathematics Other Topics    Administrator Announcements    Comments and Suggestions for S.O.S. Math    Posting Math Formulas with LaTeX    Miscellaneous