17. Periodic Motion
Energy in Pendulums
Multiple Choice
Multiple ChoiceA mass swinging at the end of a pendulum has a speed of 1.32m/s at the bottom of its swing. At the top of its swing, it makes a 9° with the vertical. What is the length of the pendulum?
A
0.07m
B
6.83m
C
1.77m
D
5.18m
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