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Unformatted text preview: hey then measure the speed of the tip of the stick with their motion sensor. Do they measure
the same speed?
Both situations can be treated as a conservation of energy where gravitational potential energy
becomes rotational kinetic energy. The simple pendulum will have a change in gravitational
potential energy equal to the length of the string; however, the rod will have a change half of that
value since the center of mass of the rod is not at the tip as it is for the simple pendulum. The
two set-ups also have different moments of inertia. Write a conservation of energy equation for
each of the two set-ups. Solving for the translational speeds of the tips, the pendulum will
while the speed of the rod will measure
Therefore, the tip of the stick is faster than the pendulum.
L center of mass, m v Physics 211 Week 8 Energy Conservation: Pothole (Solutions)
A car is traveling along a horizontal road when it suddenly encounters a pothole, in which the
level of the road abruptly changes by a height h. The su...
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- Spring '09