Question

The 1400-kg mass of a car includes four tires, each of mass (including wheels) 34 kg...

The 1400-kg mass of a car includes four tires, each of mass (including wheels) 34 kg and diameter 0.80 m. Assume each tire and wheel combination acts as a solid cylinder.

A. Determine the total kinetic energy of the car when traveling 92 km/h .

B. Determine the fraction of the kinetic energy in the tires and wheels.

C. If the car is initially at rest and is then pulled by a tow truck with a force of 1400 N , what is the acceleration of the car? Ignore frictional losses.

D. What percent error would you make in part C if you ignored the rotational inertia of the tires and wheels?

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