A block of mass m slides along a frictionless surface with kinetic energy Ki . It collides with a block of mass 3m that is initially at rest, and the two blocks stick together and slide with total kinetic energy Kf . What is the ratio Kf : Ki ?
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A block of mass m slides along a frictionless
surface with kinetic energy Ki . It collides with a
block of mass 3m that is initially at rest, and the
two blocks stick together and slide with total kinetic
energy Kf . What is the ratio Kf : Ki ?
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