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A 6.5 kg mess kit sliding on a frictionless surface explodes into two 3.25 kg parts,...

A 6.5 kg mess kit sliding on a frictionless surface explodes into two 3.25 kg parts, one moving at 2.5 m/s, due north, and the other at 5.5 m/s, 30° north of east. What was the original speed of the mess kit?

[Answer] m/s

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