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Summary In this chapter, you will learn about natural laws—such as gravity, energy of motion, friction, traction, and stopping distance—that apply to driving. You will also learn how restraint devices can help reduce the force of impact in a collision. Chapter Outline Section 1: Gravity and Energy of Motion Gravity is the force that pulls all things to Earth. It affects driving up and down hills as well as taking turns. The vehicle's energy of motion, or kinetic energy, increases as the vehicle increases in weight and speed.

Carti Retete Culinare Pdf Free more. Section 2: Friction and Traction Friction occurs when two surfaces, such as a tire and the pavement, rub together. We call the friction between a tire and the road traction. The condition of your tires and the road's surface, as well as curves in the road, can affect traction.

Section 3: Stopping Distance Total stopping distance is comprised of three parts: perception distance, reaction distance, and braking distance. The four-second rule will help you estimate stopping distance, but the actual total braking distance will be affected by speed, vehicle condition, road surface, driver ability, antilock brakes, hills, and vehicle load. Section 4: Controlling Force of Impact The speed and weight of the vehicle and the distance between impact and stopping determine force of impact during a collision. In collisions, proper use of vehicle restraint devices, such as safety belts and air bags, can improve automobile safety. Sigel Software Winbankingpireus. Online Materials Take the to assess your knowledge of this chapter.