A block of mass \(m\) slides to the right with initial speed \(v_0\) along a horizontal, frictionless track toward a stationary block of mass \(3m\). The two blocks undergo a head-on, perfectly elastic collision along a straight line. What is the ratio of the final kinetic energy of the block of mass \(m\) to its initial kinetic energy? • Nerd Notes

AP Physics 1

4.4 Elastic and Inelastic Collisions

3.1 Translational Kinetic Energy

Multi-Unit

AdvancedMCQMathematicalProportional Analysis18.1k

Block of mass m approaching stationary block of mass 3m on a frictionless surface.

A block of mass \(m\) slides to the right with initial speed \(v_0\) along a horizontal, frictionless track toward a stationary block of mass \(3m\). The two blocks undergo a head-on, perfectly elastic collision along a straight line. What is the ratio of the final kinetic energy of the block of mass \(m\) to its initial kinetic energy?

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