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¹ Lee, J.Y. (2013). “Private tutoring and its impact on students' academic achievement, formal schooling, and educational inequality in Korea.” Unpublished doctoral thesis. Columbia University.
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block is sliding on a horizontal frictionless floor at a speed of 
and runs into a horizontal spring. The spring has a spring constant of 
. What is the maximum compression of the spring after the collision?
. The unstretched length of the bungie is 
. If the bungie stretches a maximum of 
passed its unstretched length, what is the mass of the jumper?