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6

The Load-Displacement (or Load Extension) and stress strain diagrams are two diagrams identical in shape. See below. The main visible difference is the values on axis (which are at first glance neglected). So, it is natural when you first encounter them to question why do you want to learn about a stress and strain diagram which has obscure quantities (as ...


1

The CG is found by assuming the mass of the cone as 1/3m and the cylinder m, then $$ \bar{X}= \frac{2r*m+5r*m/3}{4/3m} =r*11/4 $$ The cone side length (like the sharp tip of a pencil) is $5r$, the side of a 3,4,5 triangle, and the interior half tip angle is 36.87 degrees. The CG is $5.25r$ from the tip of the cone and at rotation to rest on the side of the ...


3

Given the geometry of the object, the center of gravity is very close to the surface between the cylinder and the cone. More specifically the distance between the center of gravity and the base of the cone is $\frac{1}{4}r$. Basically what you need to prove is that the angle of the cone $ \phi$ is such, so that when the object is tilted the weight crosses ...


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