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October 2, 2014

Homework Help: heeeeeeeelp physics

Posted by lin on Wednesday, June 26, 2013 at 9:54am.

Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions and collide longitudinally.The collision is perfectly elastic and the rods swap their velocities. How long does the collision last in seconds if the length of the rods is l=30 cm. Assume that the speed of sound in the steel rods is c=5000 m/s?

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