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Find the Coordinates of the Centroid of the Curve x=5cost+5tsint,y=5sint5tcost,0tπx = 5 \cos t + 5 t \sin t , y = 5 \sin t - 5 t \cos t , 0 \leq t \leq \pi

Question 37

Multiple Choice

Find the coordinates of the centroid of the curve.
-Find the coordinates of the centroid of the curve x=5cost+5tsint,y=5sint5tcost,0tπx = 5 \cos t + 5 t \sin t , y = 5 \sin t - 5 t \cos t , 0 \leq t \leq \pi .


A) (xˉ,yˉ) =(60π120π2,120π210) ( \bar { x } , \bar { y } ) = \left( \frac { 60 } { \pi } - \frac { 120 } { \pi ^ { 2 } } , \frac { 120 } { \pi ^ { 2 } } - 10 \right)
B) (xˉ,yˉ) =(1060π,30π2) ( \bar { x } , \bar { y } ) = \left( 10 - \frac { 60 } { \pi } , \frac { 30 } { \pi ^ { 2 } } \right)
C) (xˉ,yˉ) =(10120π2,15π) ( \bar { x } , \bar { y } ) = \left( 10 - \frac { 120 } { \pi ^ { 2 } } , \frac { 15 } { \pi } \right)
D) (xˉ,yˉ) =(1060π2,30π) ( \bar { x } , \bar { y } ) = \left( 10 - \frac { 60 } { \pi ^ { 2 } } , \frac { 30 } { \pi } \right)

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