Review. A thin, cylindricalrod , 5 24.0 cm longwith mass m 5 1.20 kg hasa ball of
Chapter 10, Problem 54(choose chapter or problem)
Review. A thin, cylindricalrod , 5 24.0 cm longwith mass m 5 1.20 kg hasa ball of diameter d 58.00 cm and mass M 52.00 kg attached to oneend. The arrangementis originally vertical andstationary, with the ballat the top as shown inFigure P10.54. The combinationis free to pivotabout the bottom end ofthe rod after being given aslight nudge. (a) After the combination rotates through90 degrees, what is its rotational kinetic energy? (b) Whatis the angular speed of the rod and ball? (c) What is thelinear speed of the center of mass of the ball? (d) Howdoes it compare with the speed had the ball fallen freelythrough the same distance of 28 cm?
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