Asked by Lily
                A 4.5 kg body moving in the +x direction at 5.5 m/s collides head-on with a 2.5 kg body moving in the -x direction at 4.0 m/s. Find the final velocity of each mass for each of the following situations.The collision is elastic.
(4.5 kg mass)
(2.5 kg mass)
            
            
        (4.5 kg mass)
(2.5 kg mass)
Answers
                    Answered by
            bobpursley
            
    use the conservation of momentum, conservation of energy.  A bit of algebra will be required.
    
                    Answered by
            Lily
            
    IT DIDN'T WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    
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