Khan/khan-exercises — Issue #5187: Kinematic equations - Multiple correct answers
Author: KhanBugz
Created: 2011-10-29 21:23:58+00:00
State: open
Labels: ie8, ie9, vista

Reporter: crop_1@hotmail.com

If given d, Vf and a, there are two solutions to these problems. In this case, both t=11.0995, Vi=2.1955 and t=10.6515, Vi=-2.1955 are solutions. Does the program arbitrarily pick one to be the correct one, or what's going on? I can't figure out wich one to choose, and always seem to pick the wrong one.

[kinematic_equations.html?seed=176&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/kinematic_equations.html?seed=176&problem=0&debug)

[["-2.2","m/s"]]

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