3. A 900 kg car drives over a brige in the shape of a circular arc with radius 40 m. The car moves with a constant speed v along the circular bridge. a. In the middle of the bridge, what is the direction of the car’s acceleration? Explain. b. The normal force is the apparent weight of the car, that is, it’s what a scale would read if placed between the car and the road. What is the speed v required for the apparent weight of the car to be half of its actual weight?

3. A 900 kg car drives over a brige in the shape of a circular arc with radius 40 m. The car moves with a constant speed v along the circular bridge. a. In the middle of the bridge, what is the direction of the car’s acceleration? Explain. b. The normal force is the apparent weight of the car, that is, it’s what a scale would read if placed between the car and the road. What is the speed v required for the apparent weight of the car to be half of its actual weight?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 61A

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