Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 8 - Think and Explain: 61

Answer

The front tends to nose upward due to an airfoil effect. There is also an effect due to conservation of angular momentum (page 151-152). The rear wheels are driven clockwise, which tends to rotate the rest of the car counterclockwise. Gravity pulls down on the car, providing a clockwise torque around the rear axle to fight these effects. Having a long car increases the lever arm of the gravitational force. Also, the long body gives the car a large rotational inertia around the rear axle, minimizing its angular acceleration.
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