Homework Help: physics

Posted by Taylor on Monday, March 28, 2011 at 11:00am.

A steel ball of mass 0.300 kg is fastened to a cord that is 70.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 2.50 kg steel block initially at rest on a frictionless surface. The collision is elastic. What is the speed of the ball just after the collision? What is the speed of the block just after collision?

physics - Anonymous, Wednesday, April 6, 2011 at 5:09pm
steel ball of mass 0.300 kg is fastened to a cord that is 70.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 2.50 kg steel block initially at rest on a frictionless surface. The collision is elastic. What is the speed of the ball just after the collision? What is the speed of the block just after collision?

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