The Coefficient Of Friction And The Deceleration Of An Object

Lubricating the axles was to reduce the amount of friction caused by the rubbing of the wooden axles and the steel axles holes by doing this we will reduce the amount of friction exerted and increase the kinetic energy exerted as it will not be reduced by friction therefore meaning that the car should go considerably further with lubricated axles

Rubber friction on wet roads are 20-30% smaller than on dry roads because of the sealing effect exerted by rubber on rough surface “pools” filled with water (Persson et al, 2005). Water effectively smoothens the surface, reducing the major friction contribution. The wet road coefficient of friction calculated may not have been accurate because spraying the road with a hose is not like when it rains. There is a huge difference considering when it rains it can vary from a few sprinkles or a

The friction between

Although some individuals and governmental bodies sway towards minimizing and controlling usage, some other groups believe it is best to eradicate the usage of road salt altogether. Both of these are good suggestions and will definitely address the problem. However it is important to evaluate any suggestions and understand how the factors discussed above contribute to the increased use of road

The two types of friction of the mousetrap car are rolling friction and static friction are the two types of friction that may affect the performance of the mousetrap car. The problem of the friction did I encounter and how do you solve them one types of friction i encounter was the static friction I had to take off some glue from the stick that had my wheels and to open eye screws. The factor did take into account to decide the number of wheels you decide to chose for the mousetrap car I saw a video of a car that had 4 wheels and it ran really fast, so I thought a 4 wheeled car would run fast or at least the four meters. What kind of wheels did I use in each axles I use tires as my wheels on each axles. I think the affects on using big wheels

4.1 “What a Drag” lab tested 5 different surface areas; Tabletop, Waxed paper, Paper towel, Fine sandpaper,and Coarse sandpaper. These 5 different surface areas caused the weight to appear different . The data shows that it increases each time you do it again. Each time you pull the block over the 5 different surfaces it can increase or decrease.

In grade school, a family evening of fun was going to the races at San Jose Speedway, which was an oval track. “Popcorn, Cracker Jacks, Sodas!” shouted the snack-man. We got Cracker Jacks most times. “Al Mombo Pombo starting in the first car position!” echoed from the loud speaker. I always rooted for Al and he won most of the time. The quarter mile track was narrow for the crowd of cars racing. The dents along the sides of the cars told the story. But cars in the 1960’s were made of steel, not steel and plastic, and they handled the sideswiping

When the mousetrap car moves down the track, the speed of the mousetrap car decreases, therefore my hypothesis was supported. At 1 second, the mousetrap car was traveling at a speed of 3.2 m/s. At 2 seconds, the mousetrap car was traveling at a speed of 2.35 m/s. At 3 seconds, the mousetrap car was traveling at a speed of 1.53 m/s. At 4 seconds, the mousetrap car was moving at a speed of 1.2 m/s. At 5 seconds, the mousetrap car was traveling at a speed of .98m/s. “A car will eventually come to a stop if just allowed to roll as the friction between the road surface and the wheels causes friction that causes the vehicle to stop,”(Examples of Rolling Friction). The evidence supports the claim because the wheels of the mousetrap car are moving

The Physics of NASCAR by Diandra Leslie-Pelecky: How can a car going 190 mph operate with precision? How can race car drivers walk away from disastrous crashes? The author, a physicist, caught a NASCAR race on television and wondered those same things. In The Physics of NASCAR, Leslie-Pelecky explores the science

Friction is an opposing force. It acts in the opposite direction of the marble or the roller coaster cart. When designing a roller coaster you want to have as little friction as possible. This goes the same way with my model track, i want to make sure the track is designed to where friction will not be a worry factor but i want there to be enough of it to keep the marble from going to fast and running off the track. The force of gravity will help take some of the pressure off the importance of friction but with the marble being so light i am more than likely going to apply more friction only because the weight of the marble is so light. If the laws are correct i should have a successful marble

Static friction is friction when the car is not moving and force is pushing on the car, this happens when the mousetrap is released and car doesn’t start immediately to move, but after more force is applied to the axle the car begins to move. Static friction affects the start of the car, when the axle is being pulled and causing friction to the axle holder and the wheel to the ground, this affects if the car will start to move or not. Kinetic friction is friction when an object is moving and the rubbing force against that object is slowing the object down. Kinetic friction affects when the vehicle will stop from the friction slowing the car down with every second passing by. Friction can be seen when the axle rotates and goes against the axle holder and when the wheel is rubbing against the

The main objective of this lab was to measure the friction force it takes to start moving a weighted block across a table, and as it continued to move. This force was tested experimentally in three separate ways. The force was then solved graphically and mathematically through six different runs per method. TALK ABOUT RESULTS HERE.

Friction allows the car’s wheels to spin across the floor without just sliding across the floor. Friction is also present in the gear box of the toy car. Friction is present because the gears have to rotate against each other in order for the toy car to obtain potential energy. The toy car only produces rolling friction, which is present when the wheels rotate against the floor. Rolling also appears in the gearbox. Friction while not energy affects the energy in the toy car in two ways. Friction causes kinetic energy to be lost while the car is moving. Kinetic energy is lost when the wheels rotate against the floor because the wheels are using kinetic energy to move. The energy is then lost when because of rolling friction heat is produced. In a shorter sense the wheels because of friction convert some of the kinetic energy into thermal energy (heat). Energy is also lost when the gears in the gear box rotate against each other. Some energy would be lost because of the friction of the gears some potential energy would be converted to thermal energy affect making less potential energy available. While friction causes a loss to energy, rolling friction allows less work to be able to overcome friction (“About Friction”, 2003). Friction while not energy plays a part in both energies that affect the toy car.

The average driver doesn’t think about what keeps their car moving or what keeps them on the road, but that’s because they don’t have to. The average driver doesn’t have to worry about having enough downforce to keep them on the road or if they will reach the adhesive limit of their car’s tires around a turn. These are the things are the car designers, professional drivers, racing pit crews, serious sports car owners, and physicist think about. Physics are an important part of every sports and racing car design. The stylish curves and ground effects on sports cars are usually there not just for form but function as well allowing you to go speeds over 140 mph in most serious sports cars and remain on the road and in

When two objects get in contact with each other the force between them forms. Scientists call this force the frictional resistance, or friction. It occurs because of the imperfections in the surfaces of objects, the molecules of both surfaces interfere with each other creating a natural force between two objects. The friction opposes direction of motion of the object and is parallel to the surface on which the action takes place. The force and magnitude that are necessary to overcome friction can be calculated. Area of objects that is involved in the contact is disregarded when calculating friction.