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Tue 4 Nov, 2014 07:32 pm
The average car today has a mass of 1100 kg, and when accelerating from rest, covers 0.25 miles in 15 seconds. Each rim and tire together has a diameter of 46 cm and a mass of 9.1kg. If we agree the rim and tire have the shape of a solid disk that rotates through its geometric center, what would be the rotational kinetic energy of one of the tires, in Joules, at the end of the run?
i need helo finding angular velocity to input into: KE= 1/2* I * W^2
im stuck
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