A uniform right circular cone of base radius 2a and height 8a rests in equilibrium with its base in contact with the Rough inclined plane the angle of inclination of the plane is then increase steadily. Assuming the plane is sufficiently rough to prevent slipping find the angle of inclination of the plane to the horizontal when the con is about to topple

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

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