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November 27, 2014

Posts by nammilee


Total # Posts: 2

physics
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 along the y axis at v_A = 2.0m/s , and ball B is moving to the right along the x axis with speed v_B = 5.0m/s . After the collision, assumed elastic...
November 28, 2012

Physics
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
November 1, 2010

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