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April 16, 2014

Homework Help: phisics

Posted by sello on Wednesday, April 7, 2010 at 5:24am.

a 20kg block is connested to a 30kg block by a string that passes over a frictionless pully. the 30kg block is connected to a spring that has niglible mass and a force constant of 250n/m.the 20kg block is pulled 20cm down the incline(40 degrees) and released from rest find the speed of each block when the spring is unstreched

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