Question 88415
A football quarterback throws the football with a speed of 48 feet per second at an angle of 45 degrees upward from the ground.  The vector that describes the motion of the football is what?
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r = 45
theta = 45%
45(cos45 + isin45)
= (45sqrt2)/2 + 45(sqrt2/2)i
is the complex number form of the vector.
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((45sqrt2)/2,(45sqrt2)/2) is the Cartesian form.

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Cheers,
Stan H.