The objects in the figure below are constructed of uniform wire bent into the sh

Question

The objects in the figure below are constructed of uniform wire bent into the shapes shown . Each peice has a length of 0.43 m.

http://session.masteringphysics.com/problemAsset/1000026358/9/yg.8.47.jpg

A) Find the x- and y- coordinates of the center of mass of the object (a). The angle shown is 58 degrees. Assume the origin to be at the bottom left point.
(Enter your answers separated by a comma.)
B) Find the x- and y-coordinates of the center of mass of the object (b). Assume the origin to be at the bottom left point.
(Enter your answers separated by a comma.)
C) Find the x- and y-coordinates of the center of mass of the object (c). Assume the origin to be at the bottom left point.
(Enter your answers separated by a comma.)
D) Find the x- and y-coordinates of the center of mass of the object (d). Assume the origin to be at the bottom left point.
(Enter your answers separated by a comma.)

Explanation / Answer

For 1st part x=lcos61=0.48l y=lsin61/2=0.43l x=M/3*l/2+M/3*l/m x=l/2 y=m/3*l/2+m/3*l/2/m y=l/3 x=l/4 y=l/4 by similar pricedure For triangle it would be its centroid x=l/2 y=l/2*root3

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