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Eikcuhc
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[URL]http://einstein.math.fsu.edu:9080/testbanks/wiley/math/1114ptF08/cch/images/qu.215.9.question.gif[/URL]
I know that
W = Fd where here it is
W = F * [tex]{\rightarrow}{\}[/tex]AB
Also, that
(im sorry, this looks really ugly)
[tex]\stackrel{v\rightarrow}{}[/tex] = ||v||(cos[tex]\alpha[/tex][tex]\stackrel{i\rightarrow}{}[/tex]+sin[tex]\alpha[/tex][tex]\stackrel{j\rightarrow}{}[/tex])
||v|| = sqrt(a2+b2)
I get stuck fairly quickly on this problem, my professor never went on it in class.
using the second equation, I get to the point of
v = (sqrt13)(cos+sin)
I am not sure what goes into the cos and sin portion of the problem, I am assuming it has something to do with the coordinates it gives, but other than that, I have no idea.
Homework Statement
[URL]http://einstein.math.fsu.edu:9080/testbanks/wiley/math/1114ptF08/cch/images/qu.215.9.question.gif[/URL]
Homework Equations
I know that
W = Fd where here it is
W = F * [tex]{\rightarrow}{\}[/tex]AB
Also, that
(im sorry, this looks really ugly)
[tex]\stackrel{v\rightarrow}{}[/tex] = ||v||(cos[tex]\alpha[/tex][tex]\stackrel{i\rightarrow}{}[/tex]+sin[tex]\alpha[/tex][tex]\stackrel{j\rightarrow}{}[/tex])
||v|| = sqrt(a2+b2)
The Attempt at a Solution
I get stuck fairly quickly on this problem, my professor never went on it in class.
using the second equation, I get to the point of
v = (sqrt13)(cos+sin)
I am not sure what goes into the cos and sin portion of the problem, I am assuming it has something to do with the coordinates it gives, but other than that, I have no idea.
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