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8.88 CP A 20.00 kg lead sphere is hanging from a hook by a thin wire 3.50 m long and is free to swing in a complete circle. Suddenly it is struck horizontally by a 5.00-kg steel dart that embeds itself in the lead sphere. What must be the minimum initial speed of the dart so that the combination makes a complete circu- lar loop after the collision?
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れし mcon (SO) ν 20.oe+s:o)(jt. )

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