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OpenStudy (anonymous):
i give medals! A boat of mass 450 kg drifts along a river at a speed of 10 m/s to the north. What impulse is required to decrease the speed of the boat to 6 m/s to the north? A. 2700 kgm/s south B. 1800 kgm/s north C. 1800 kgm/s south D. 2700 kgm/s north
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OpenStudy (anonymous):
Impulse changes the momentum.
OpenStudy (anonymous):
c 1800
OpenStudy (anonymous):
Impulse = change in momentum. I=450(10)-450(6) =1800
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