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A model rocket is constructed with a motor that can provide a total impulse of 21.0 Ns. The mass of the rocket is 0.205 kg.

A model rocket is constructed with a motor that can provide a total impulse of 21.0 Ns. The mass of the rocket is 0.205 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance.

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