What – kinetic or potential – energy does the pendulum have at points 1, 2, 3? How does the kinetic and potential energy change when passing from one position to another?
1 The kinetic energy is equal to zero, the potential energy is maximum, it seems to freeze for a second before flying down, and only moving bodies have kinetic energy. 2 In the lower position of the pendulum, kinetic energy is maximum, and potential energy is minimum. 3. In the upper right position, the state of the pendulum is similar.
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