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C9
Course: PHY 9HA, Fall 2010School: UC Davis
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Rotational C9: Energy Find the moment of inertia of a rigid rod of mass M and length L rotating about an axis at the center of the rod. Assume the mass in the rod is uniformly distributed along its length. R M m A block of mass m hangs by a string from a pulley of mass M and radius R. The system is released from rest. The string is wrapped around the pulley so it does not on slip the pulley, and the pulley is...
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Rotational C9: Energy
Find the moment of inertia of a rigid rod of mass M and length L
rotating about an axis at the center of the rod.
Assume the mass in the rod is uniformly distributed along its length.
R
M
m
A block of mass m hangs by a string from a pulley of mass M and radius
R. The system is released from rest. The string is wrapped around the
pulley so it does not on slip the pulley, and the pulley is therefore set
into motion by the falling block. What is the speed of the block after it
has fallen a vertical distance h?
The pulley is a solid cylinder with moment of inertia I = 1 M R2
2
A solid cylinder and a hoop have the same radius. They both start at
rest at the top of a ramp and then roll down. Which one gets to the
bottom rst?
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