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Physics 18 Online
OpenStudy (anonymous):

Help for a MEDAL and FAN!!! A magnetic hockey puck (0.40 kg) hits another hockey puck (0.40 kg) at rest and both travel together to the right at 8.0 m/s. How fast was the first hockey puck initially moving?

OpenStudy (anonymous):

it would be (.4*.4)8.0... solve from here :) do you remember the Law of conservation of momentum...?

OpenStudy (anonymous):

thanks for the help but i got my answer already ... :)

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