A barbell has a 100.0-kg spherical mass of diameter 0.20 m on the left end and...
A barbell has a 100.0-kg spherical mass of diameter 0.20 m on the left end and a 40.0 kg spherical mass of diameter 0.40 m on the other end. The masses are separated by a very strong, uniform bar of length 1.5 m. A weightlifter wants to hold the barbell over his head with a single hand placed in such a location as to balance the weight and make it as easy as possible to lift the barbell. (a) If you can ignore the mass of the bar, where should he place his hand? (b) If you do not ignore the mass of the bar, should he place his hand at the same position, shift it right, or shift it left? Explain. 3 (c) Suppose that the bar has a mass of 10.0 kg. Calculate the position at which the weightlifter should place his hand.
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A barbell has a 100.0-kg spherical mass of diameter 0.20 m on
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