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April 19, 2014

Homework Help: physics

Posted by david on Monday, January 30, 2012 at 11:15am.

A(n) 3.91 kg sphere makes a perfectly inelastic collision with a second sphere that is
initially at rest. The composite system moves
with a speed equal to one-third the original
speed of the 3.91 kg sphere.
What is the mass of the second sphere?
Answer in units of kg

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