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Physics, 10.12.2021 05:30 eggemotions

A pendulum made of a string of length 11.6 m and a spherical bob of mass 2.8 kg is
able to swing in a vertical plane. The pen-
dulum is released from an angular position
38° from vertical as shown in the figure be-
low. The string hits a peg located a distance
5 m below the point of suspension and swings
about the peg up to an angle a on the other
side of the peg. Then, the bob proceeds to
oscillate back and forth between these two
angular extremities.
The acceleration of gravity is 9.8 m/s?.

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