**1D Kinematics Question** __Question:__
"A set of keys slides along the floor, coming to rest 1.9 meters from where they started. If the initial speed of the keys was 4.8 m/s then ....
acceleration = ?
time = ?"
The question seems to give only final position and initial velocity which is not enough information to use any of the *Equations of Kinematics with Uniform Acceleration*! What am I missing?
Any help would be greatly appreciated!
Thanks in advance! **Edit: Nevermind, I just needed to see that final velocity is 0. If others care; a = -6.0632 m/s^2 and t = 0.7917 s.** *
Last edited by s3a; Feb 2nd 2010 at 07:13 PM.
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