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OpenStudy (anonymous):
What is the mass of a stone moving at a speed of 15 meters/second and having a momentum of 7.5 kilogram·meters/second? A) 0.5 kilograms B) 1.5 kilograms C) 11 kilograms D) 1.1 x 10^2 kilograms
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OpenStudy (anonymous):
Is it A?
OpenStudy (anonymous):
yep ^_^ m*15 = 7.5
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