physics
posted by marie .
An object has an xmomentum of 8.5 kilogram·meters/second and a ymomentum of 9.8 kilogram·meters/second. What is resultant momentum of the object?

momentum=8.5x+9.8y kgm/s
resultant magnitude: sqrt(8.5^2+9.8^2)
angle from x towards y: arctan9.8/8.5 
41