Questions on Algebra: Introduction to vectors, addition and scaling answered by real tutors!

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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?: 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?
Answer by stanbon(19007) About Me  (Show Source):
You can put this solution on YOUR website!
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.