A toy battery-powered plane is hanging from the ceiling. With the motor turned off it is pulled to one side 0.20 m and released to swing as a pendulum. It takes 1 s to get to the far side of its swing. The plane now has the motor turned on and it flies in a circular path of radius 0.60 m. If the period of the circular motion is the same as the period of the simple harmonic motion, what is the approximate speed of the plane?

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.