Question: A 25.0-g bullet strikes a 0.600-kg block attached to a fixed horizontal spring whose spring stiffness constant is 7.70 X 103 N/m. The block is

A 25.0-g bullet strikes a 0.600-kg block attached to a fixed horizontal spring whose spring stiffness constant is 7.70 X 103 N/m. The block is set into vibration with and amplitude of 21.5cm. What was the speed of the bullet before impact if the bullet and block move together after impact?

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