2. “A body at rest will remain at rest unless acted upon by an outside force.” Example- A car accelerates from a stop sign or a stopped car is propelled forward by a rear –end collision. Conservation of Energy The law of conservation of energy states, “Energy can neither be created nor destroyed. It can only be changed from one form to another.” Example- If a car slows down gradually; the brakes develop friction and heat. During an auto crash, the transfer of energy happens at a much greater rate into different forms.
2) List as many aerodynamic features fitted to the V8 Supercars in order to provide a balance between down force and performance.---Cars use spoilers and wings, a front air damp and side skirts all either made in house by the teams or bought from a specialist company. Each piece is tested and measured by running the car up to a set speed and then allowing the car to stop under friction. This will allow an accurate measure of the aerodynamic drag over a range of speeds. The spoilers are aerodynamic devices designed to diminish unfavourable air movement across the vehicle. Spoilers on the front of the vehicle are usually called air dams, since in addition to directing air flow they also reduce the amount of air flowing underneath the vehicle which reduces lift and drag.
Discussion: In this experiment, a spring trigger launches a steel ball, acquiring a certain initial velocity. Then the ball collides with a wooden block, and together they reach a specific angel at height (Δh), called the angle indicator, and a final velocity. Our angle indicator reading was 0 degrees when the pendulum was hanging freely. Because of this, the maximum angel found from the collisions is easier to calculate, since we do not need to subtract the amount the pendulum is off from 0 degrees. After finding the initial estimate of the maximum angle, we loaded the launcher again and set the angle indicator to 3 degrees less than the angle reached in the previous step.
Because the ball is constantly moving it is constantly changing direction and therefore it’s constantly changing velocity. This means even if the speed is constant the velocity is always changing. When the object has enough momentum, it is launched into the air an optimum angle to go high enough to travel far in the time it’s in the air, but not so that it just travels straight upward and not horizontally. It doesn’t matter what athletic event it is, as the analysis of the circular motion is the same. Newton’s three laws describe the relationship between force, mass and acceleration.
Since our model rocket will not reach outer space we do not have to worry about the aerodynamic forces depend on air density. The drag force is opposite from the location of motion because it is created by air friction. Lift in the other hand is perpendicular to motion. Both lift and the drag act on the center of pressure of rocket causing it to rotate through the center of gravity. This is why the design of a model rocket is very important and since the fins are one of the most important aspects of the rocket we decided to test two types of fins to see which one was the most effective.
This is the design of the later models of the air bag. The older models stayed inflated too long causing an impact worse than that of the car. It is always best to wear your seat belt because if you are in the way when it is opening you could possibly be injured. When the bag inflates it is moving towards you, increasing the impact time between you and it. It also deflates in 0.3 seconds after inflation, so if you miss it you will still hit the steering wheel.
A Seat Belt, or sometimes known as a ‘Safety Belt’, is a harness that is designed to secure the occupant of a car in the event of a crash. The belt will stop the occupant suffering injuries from the extreme forces that would be caused by sudden braking or a collision. Seat Belts are designed to reduce injuries by stopping passengers from being thrown into hard objects contained within the car, such as the dash or steering wheel, or at higher speeds, to save the passenger from being thrown from the car completely. There are many different types of seatbelts, some more safe and reliable than others. The first type of seatbelt that was found in cars on a large scale was the Lap Belt.
All the freeways will merge off a different points to end a safe landing point. For example, if you are about to collide into the rear of someone, the Air Enabler nozzle on the front of your car would detect this and blow forward. Meanwhile, the Air Enabler nozzle on the back of the other person would blow towards your car, avoiding collision and keeping you safe. After an experience with the Air Enabler, you would be terrified of driving on land. Could you imagine going back to bumper to bumper
It also might let them know that if they are in an aggressive mood, then they should calm down or pull over at an appropriate stop and take a moment to calm down and get their head cleared. This summarizes the lesson with the concept of following the speed in cities, the interstate, and highways. It shows that the driver behind the bumper sticker is not following the rules of the road in its simplest form and should take a moment and pull over where appropriate and take a moment to clear their mind so they can follow the rules of the road without any distractions. Module 6: Effects of Alcohol and Drugs Some day you might find yourself in a dangerous driving situation because of drugs, alcohol, or extreme drowsiness due to medication. Talk to a parent or guardian about what they would like for you to do if you find yourself in this situation.
In the catapult tension, torsion, and gravity are the three primary energies. When the throwing arm is pulled back, the tension increases, which is stored when you latch the hook to the screw, when released the tension is let go and goes through the arm and launches the projectile. The two dimension motion in a catapult is acted on by gravity and inertia of the projectile. Since air resistance is present when the projectile is launched, its inertia causes the velocity of it to slow down. When gravity is acting upon the projectile in the X direction, it makes the projectile go down.