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Statement of a problem № 3175

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A smooth sphere of mass m moving with speed v on a smooth horizontal surface collides directly with a second sphere of the same size but of half the mass that is initially at rest. The coefficient of restitution is e. (i) Show that the total kinetic energy after collision is mv^2(2+e^2)/6 (ii) Find the kinetic energy lost during the collision.

Solution:
A smooth sphere of mass m moving with speed v on a smooth horizontal surface col

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