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Part of the kinetic energy of a moving automobile is in
Chapter 4, Problem 17DQ(choose chapter or problem)
Part of the kinetic energy of a moving automobile is in the rotational motion of its wheels. When the brakes are applied hard on an icy street, the wheels “lock” and the car starts to slide. What becomes of the rotational kinetic energy?
Questions & Answers
QUESTION:
Part of the kinetic energy of a moving automobile is in the rotational motion of its wheels. When the brakes are applied hard on an icy street, the wheels “lock” and the car starts to slide. What becomes of the rotational kinetic energy?
ANSWER:Solution 17DQ Step 1 of 2: The total kinetic energy of the object is the sum of rotational and translational kinetic energy. That is, KE= KE rotKE trans Using fundamental equation, KE= I2+ mv 2 cm2 Where I is moment of inertia about the point of rotation , is angular velocity, m is mass of body and v is the velocity of center of mass. cm