Khan/khan-exercises — Issue #4572: Kinematic equations - kinematic problem-divide by zero??
Author: KhanBugz
Created: 2011-10-19 00:41:47+00:00
State: open
Labels: ie8, ie9, vista

Reporter: philgeorge@reachone.com

In this problem, you must use the quadratic equation as shown. However, acceleration is zero which is in the denominator of the equation. How can you get t = 9s from this equation????

[kinematic_equations.html?seed=90&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/kinematic_equations.html?seed=90&problem=0&debug)

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