a) parking lots Car 1, though, will plough straight into him. d. A whole chicken is never cost-effective for a family. It is the tendency of objects to keep moving in a straight line at constant velocity. 90% of today's drivers believe that they may be at fault if they are involved in a collision. speed increases from 20 mph to 40 mph. A certain compact disc (CD) contains 783.216 783.216 783.216 megabytes of digital information. The gravitational potential energy of an object changes when which of the following changes? is real.] a) nighttime running lights Using data from actual road crashes, scientists at the University of Adelaide estimated the relative risk of a car becoming involved in a casualty crasha car crash in which people are killed or hospitalisedfor cars travelling at or above 60 km/h. 1030 0 obj <>stream a) traffic is traveling in the same direction The force between the tyres and the road increases with increasing speed and with the sharpness of the turn (Force = mass velocity squared, divided by the radius of the turn), increasing the likelihood of an uncontrolled skid. Car 1 therefore takes 4.5 more metres to stop than Car 2, a 12 per cent increase. Session 8: Physics of Driving and Occupant Restraints PPT b) daytime riding lights A and B - The car is at rest for 20 seconds. Driver's Ed Chapter 9 Flashcards | Quizlet GLOSSARY The cylinder is pressurized to p=2000p=2000p=2000 psi. If you double your speed, your braking distance will become four times longer. Otherwise, click the red Don't know box. Explanation. Kinetic Energy Energy in motion is another way of expressing what? That means you should make sure your tires have the right air pressure level and plenty of tread. . If a vehicle's speed doubles, the forces involved in a collision will be quadrupled. . b) 70% of all traffic crashes a) 1 Friction causes mechanical energy to be converted to which of these forms? Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page. More than what percentage do all vehicle-occupant fatalities occur in single-vehicle crashes? Factors that affect traction include tires, shock absorbers, and steering system For car 1, d = 16.3 metres, while for Car 2, d = 13.9 metres. Oxidation, the burning of alcohol, takes place in your: Most people experience dips in energy between approximately midnight and 6 a.m., and again between approximately ____________, during which they are more likely to fall asleep while driving. How many meters will it take to stop a car going twice as fast? To allow enough distance to stop in response to threatening objects or conditions, you should identify a planned path of travel ____ seconds ahead. Nearly half of all new drivers will either be cited for a traffic offense or be involved in a collision during their first 12 months of driving.

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