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nammilee
Questions (1)
Two billiard balls of equal mass move at right angles and meet at the origin of an xy coordinate system. Ball A is moving upward
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Answers (1)
Potential energy = 30 J, Spring stiffness constant k = 420 N/m distance x = ? Potential energy = 1/2*k*x^2 => 30 = 1/2*420*x^2 => x = √(30/210) = 0.378 m
