Answer 16.5

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<math>\frac{2}{3}</math> <math>\text{m}{{\text{s}}^{-1}}</math>, in the opposite direction as before the collision.
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<math>\frac{4}{3}</math> <math>\text{m}{{\text{s}}^{-1}}</math>, in the opposite direction as before the collision.

Revision as of 16:34, 27 March 2011

\displaystyle \frac{4}{3} \displaystyle \text{m}{{\text{s}}^{-1}}, in the opposite direction as before the collision.