A futuristic design for a car is to have a large solid...

A futuristic design for a car is to have a large solid disk-shaped flywheel within the car storing kinetic energy. The uniform flywheel has mass 370 kg with a radius of 0.500 m and can rotate up to 220 rev/s. Assuming all of this stored kinetic energy could be transferred to the linear velocity of the 1900-kg car, find the maximum attainable speed of the car. v = m/s

An experimental flywheel, used to store energy and replace an automobile engine, is a solid disk of mass $200.0 \mathrm{kg}$ and radius $0.40 \mathrm{m} .$ (a) What is its rotational inertia? (b) When driving at $22.4 \mathrm{m} / \mathrm{s}(50 \mathrm{mph}),$ the fully energized flywheel is rotating at an angular speed of $3160 \mathrm{rad} / \mathrm{s} .$ What is the initial rotational kinetic energy of the flywheel? (c) If the total mass of the car is $1000.0 \mathrm{kg},$ find the ratio of the initial rotational kinetic energy of the flywheel to the translational kinetic energy of the car. (d) If the force of air resistance on the car is $670.0 \mathrm{N},$ how far can the car travel at a speed of $22.4 \mathrm{m} / \mathrm{s}(50 \mathrm{mph})$ with the initial stored energy? Ignore losses of mechanical energy due to means other than air resistance.

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