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A 15.4 kg cart travels at constant speed, and its four wheels are rolling without slipping....

A 15.4 kg cart travels at constant speed, and its four wheels are rolling without slipping. The wheels are disks (radius 0.761 m, mass 1.39 kg), and they turn at constant ω = 15.5 rad/s. Find the total kinetic energy of the cart.

NOTE: first, you must find the speed of the cart!

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