Khan/khan-exercises — Issue #11251: Kinematic equations - Alternative answer doesn't make sense
Author: KhanBugz
Created: 2012-01-15 03:44:10+00:00
State: open
Labels: firefox, other, win7

Reporter: christilin@msn.com

If we have a positive acceleration and a start velocity of -9.8 m/s it doesn't make sense to have a negative final velocity.

[kinematic_equations.html?seed=178&problem=accelerated](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/kinematic_equations.html?seed=178&problem=accelerated&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/kinematic_equations.html?seed=178&problem=accelerated&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B%5B%5C%2278.08%5C%22%2C%5C%22m%2Fs%5C%22%5D%5D%22%2C178%5D%5D)

[[["78.08","m/s"]]]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

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