Natural Forces Affecting The Driver

In one or more complete sentences, explain how natural laws apply to the following scenarios:

1. How does inertia affect a person who is not wearing a seatbelt during a collision? If you are not wearing a seat belt, inertia will keep you moving. This means you will fly out of your car until you hit something to bring you to a stop, which can be fatal.
2. How does kinetic energy affect the stopping distance of a vehicle traveling at 30 mph compared to the same vehicle traveling at 60 mph? A vehicle moving at 30 mph will have four times less energy than when moving at 60 mph, that energy must be dissipated by the friction the tires do against the ground, and then energy becomes work, which equals force times distance. Since the brakes can apply only a fixed force, the distance on the same conditions will be 4 times larger for the higher speed.
3. How does kinetic energy affect the stopping distance of a small vehicle compared to a large vehicle? The stopping distance does not depend on the size of the vehicle. The reason is that even though energy at a given speed is even to mass, the stopping force is also is also proportional to mass, and the two objects that cancel.
4. Keeping in mind the kinetic energy of a moving vehicle, how can a driver best prepare to enter sharp curves in the roadway? Entering, the driver should reduce speed by pressing on brakes, until a slow point has been reached.
5. Using information about natural laws, explain why some car crashes produce minor injuries and others produce catastrophic injuries. The larger the mass and speed the larger the force it will be produced. Some car crashes are minor injuries because the car is small and it was running slow but some car injuries catastrophic because the driver was going on a very high speed and the force was greater.

Imagine you are taking a road trip! Select a destination and navigate the trip. Answer the following questions in one or more complete sentences:

Where will you go on your trip? On my trip I would go to Washington D.C. You approach a railroad crossing with a cross buck sign that has no lights or gates. What should you do? Slow down, Look and listen for a train, and stop if a train is coming. Railroad cross buck signs are found at most crossings, if there is more than one track, The sign below the cross buck will show the number of tracks at the crossing. You arrive at an intersection with traffic lights that are not working because of a power outage.

What do you do? I would stop, and proceed when it’s safe. There is a flashing yellow light at the intersection you are approaching. What does the flashing yellow light indicate, and what should you do to safely navigate this intersection? The flashing yellow light indicates; proceed with caution, I would also have to partially stop and continue if safe. On the road you are traveling, the pavement markings change from broken white lines to solid white lines between the lanes of traffic. What does the line change mean? If I’m traveling and the pavement markings change from broken white lines to solid white lines between the lanes of traffic; this line change means that I most stay within the line. After an hour on the expressway, your passengers need to use the restroom and they want to get some food. As you approach the next exit, what color sign will you look for, and what type of information would you expect to see on that sign? I expect a blue rectangular sign, with the local restaurants and gas stations. When you take the exit ramp off the expressway and merge onto the next road, you see yellow lines dividing the roadway. What do the yellow lines tell you about the traffic flow? It indicates that there is two direction traffic.