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An object has an x-momentum of 8.5 kilogram·meters/second and a y-momentum of 9.8 kilogram·meters/second. What is resultant momentum of the object?

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momentum=8.5x+9.8y kg-m/s

resultant magnitude: sqrt(8.5^2+9.8^2)

angle from x towards y: arctan9.8/8.5

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