Khan/khan-exercises — Issue #4447: Kinematic equations - Isn't the answer to this one undefined?
Author: KhanBugz
Created: 2011-10-17 02:59:29+00:00
State: open
Labels: safari, snowleo

Reporter: dcarlton@cfl.rr.com

Per your solution steps, the denominator of the quadratic is zero. If the denominator is zero, isn't the solution undefined?

I really enjoy working thru your problems. Please keep up the good work. You are doing us math-challanged folks who wish to overcome our handicap a great service.

[kinematic_equations.html?seed=147&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/kinematic_equations.html?seed=147&problem=0&debug)

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