Physics, 19.10.2021 22:50 louiecampos

A frictionless pendulum with a mass of 0.4 kg and a length of 2.1 m starts at point A, at an angle θ of 60°. As it swings downward, it passes through point B, which is 30 degrees from equilibrium. What is the kinetic energy of the pendulum at point B?

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A frictionless pendulum with a mass of 0.4 kg and a length of 2.1 m starts at point A, at an angle θ...

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