What is the acceleration of two falling sky divers

Reference no: EM1358922

Q. Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 440 π rad/s. One such flywheel is a solid, uniform cylinder with a mass of 570 kg and a radius of 1.10 m. (a) What is the kinetic energy of the flywheel after charging? (b) If the truck uses an average power of 8.2 kW, for how many minutes can it operate between chargings?

Q. What is the acceleration of two falling sky divers (106.0 kg including parachute) when the upward force of air resistance is equal to one-forth of their weight?

Reference no: EM1358922

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