- #1
emily081715
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Homework Statement
All three disks are made of sheet metal of the same material, and the diameters are 1.0 m , 2.0 m , and3.0 m . Assume that the x-axis has its origin at the left-most point of the left-most object and it points to the right.Determine the location of the center of mass of the system shown below .
Homework Equations
xcm=mx1+mx2+mx3/m1+m2+m3
The Attempt at a Solution
so we were never shown how to do a question like this, so i am very lost on where to begin, and need to find an answer for my mastering physics assignment.
i used the area of a circle (πr2) to find the mass of each object. I found the radius by dividing the given diameters by two.
m1=0.78593 kg
m2=3.14159 kg
m3=7.06858 kg
using theses masses i plugged values into the equation xcm=mx1+mx2+mx3/m1+m2+m3
xcm=0.78593(0.5)+3.14159(1)+ 7.06858(1.5)/0.78593+3.14159+7.06858
xcm=1.3m