Question

A flagpole is constructed of three successively welded parts. Each part is 3.00 m long and...

A flagpole is constructed of three successively welded parts. Each part is 3.00 m long and
the mass of the parts, calculated from the ground, is 33 kg, 22 kg and 11 kg. At what height above the ground is
flag center of gravity? (Answer 3.5 m)

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Answer #1

For objects near surface of earth, center of gravity is same as the position of center of mass. Hence we obtain center of mass of the object which will be the required center of gravity as shown below.

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