- #1
apgym2
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angular speed question! please help right away!
a pencil, 15.7 cm long, is released from a vertical position with the eraser end resting on a table. The eraser does not slip. Treat the pencil like a uniform rod. what is the angular speed of the pencil just before it hits the table?
i know i have to use conservation of energy, but I am not sure where center of mass fits in.. please help
the answer choices are:
a. 11.2 rad/s
b. 7.23 rad/s
c. 24.5 rad/s
d. 16.8 rad/s
any help or guidance would be much appreciated..thank u!
a pencil, 15.7 cm long, is released from a vertical position with the eraser end resting on a table. The eraser does not slip. Treat the pencil like a uniform rod. what is the angular speed of the pencil just before it hits the table?
i know i have to use conservation of energy, but I am not sure where center of mass fits in.. please help
the answer choices are:
a. 11.2 rad/s
b. 7.23 rad/s
c. 24.5 rad/s
d. 16.8 rad/s
any help or guidance would be much appreciated..thank u!