When the pendulum is displaced from equilibrium and released, the cart moves in the opposite direction in order to conserve the momentum. This is because it wants to keep the center of mass of the system constant. The cart can be pushed and it will move in what seems to be a jerky motion, but the center of mass of the system travels at a constant velocity.
(1D40.50) Momentum Pendulum
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When the pendulum is displaced from equilibrium and released, the cart moves in the opposite direction in order to conserve the momentum. This is because it wants to keep the center of mass of the system constant. The cart can be pushed and it will move in what seems to be a jerky motion, but the center of mass of the system travels at a constant velocity.
Metal
Gray
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