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Physics 9 Online
OpenStudy (anonymous):

A baseball is hit with a bat. The direction of the ball is completely reversed and its speed is doubled. If the actual contact with the bat lasts o.41s what is the ratio of the acceleration to the original velocity?

OpenStudy (roadjester):

\(v_f=v_i+at\) \(v_f=-2v_i\) \(t=0.41s\) solve for a and take a/v_i

OpenStudy (anonymous):

ill try.

OpenStudy (anonymous):

its negative?

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