Q5) A thin uniform cylinder of mass m 2.91 kg and radius r= 0.105 m lies flat on a table. The center of mass of the cylinder is attached to a massless string. Initially the center of mass of the cylinder moves in a uniform circular motion with constant radius R = 1.27 m. The speed of the center of mass is v = 7.08 m/s view from above view from the side R a) What is the magnitude angular momentum of the cylinder, with respect to the center of rotation? b) A force acts on the massless string for a while, such that afterwards the center of mass of the cylinder moves in a uniform circular motion with a new constant radius Rnew= 0.790 m. Calculate the work the force did on the system of the rotating cylinder.

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Chapter9: Linear Momentum And Collisions
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Q5) A thin uniform cylinder of mass m = 2.91 kg and radius r= 0.105 m lies flat on a table. The
center of mass of the cylinder is attached to a massless string. Initially the center of mass of the
cylinder moves in a uniform circular motion with constant radius R = 1.27 m. The speed of the
center of mass is v = 7.08 m/s
view from above
view from the side
R
a) What is the magnitude angular momentum of the cylinder, with respect to the center of
rotation?
b) A force acts on the massless string for a while, such that afterwards the center of mass of the
cylinder moves in a uniform circular motion with a new constant radius Rnew = 0.790 m.
Calculate the work the force did on the system of the rotating cylinder.
Transcribed Image Text:Q5) A thin uniform cylinder of mass m = 2.91 kg and radius r= 0.105 m lies flat on a table. The center of mass of the cylinder is attached to a massless string. Initially the center of mass of the cylinder moves in a uniform circular motion with constant radius R = 1.27 m. The speed of the center of mass is v = 7.08 m/s view from above view from the side R a) What is the magnitude angular momentum of the cylinder, with respect to the center of rotation? b) A force acts on the massless string for a while, such that afterwards the center of mass of the cylinder moves in a uniform circular motion with a new constant radius Rnew = 0.790 m. Calculate the work the force did on the system of the rotating cylinder.
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