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 A car is traveling 57 miles per hour for 3 hours at a direction 31˚ south of west.  Find the exact coordinates of the car after 3 hours.

 May 12, 2020
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31° south of west =  180 + 31   =  211°

 

The (approx) coorrdinates  = 

 

[ (3)(57) cos (211°),  (3)(57) sin (211°) ]  =

 

[ 171 cos (211°) , 171 sin (211°) ] =

 

(-146.58, -88.07 )

 

cool cool cool

 May 12, 2020
edited by CPhill  May 12, 2020

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