Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 400 π rad/s. One such flywheel is a solid, uniform cylinder with a mass of 620 kg and a radius of 1.24 m. (a) What is the kinetic energy of the flywheel after charging? (b) If the truck uses an average power of 6.3 kW, for how many minutes can it operate between chargings?

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Q: Item 21 You are designing a rotating metal flywheel that will be used to store energy. The flywheel…

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Q: A frictionless pulley has the shape of a uniform solid disk of mass 2.50 kg and radius 20.0 cm. A…

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.