Speed Force

acceleration and there must be an external force causing centripetal acceleration. As shown in the diagram, the only thing in contact with the car is the road, which is between the tyres of the vehicle and the surface of the road. Therefore, we can know that the frictional force exerted between the tyres and the road directed to the centre of the arc of which the car is travelling, is the causative force for centripetal acceleration. F= Frictional force between tyres and road F=ma^c F=(mv^2)/r…

were rigid bodies causing most of the force transferred to the occupants rather than being absorbed by the car. This led to many fatal accidents (Raiciu, Tudor). Isaac Newton first and second law can be used in understanding why crumple zones are needed. We know that an object tends to keep moving at same speed and the same direction unless acted upon and that force equals mass multiplied by acceleration. Translate that into an accident and that equals the force experienced by the automobile…

variables involved like air pressure, rotation of the ball, and aerodynamics. These are very important factors when a baseball is thrown. A Big part of velocity is the air pressure, this is because of a separate topic called the Magnus Effect - a force exerted on a rapidly spinning cylinder or sphere moving through air in a direction at an angle to the axis of spin. This is what I am testing in this experiment using the average velocity formula v=(Df-Di)/t. I will test the change between the…

assumed to exist in the sticking and sliding regions, respectively[42]. Most analyses have applied classical friction situation following Coulomb’s laws which is based on coefficient of friction [e.g., [55], [62]]. Frictional sliding force F is proportional to the force N normal to the interface at which sliding is taking place. This model can be expressed by: However, the above equation fails to give accurate prediction in high normal stress conditions. Several studies applied modified Coulomb…

motion with the same speed and direction, unless acted upon by an unbalanced force” In this video the athlete is at rest when he is first on the starting block. He is being acted upon by normal force between him and the block. When he bends down to pull with all his strength on the block he is creating a tension force between him and the block. He then gets power and pushes off the block with both feet. He is accelerating into the air and being acted upon by an unbalanced force. He is changing…

Physics of Skiing Science research paper Johanna Kelly For my science fair project, the topic I wanted to study were the physics of skiing. The question I’m going to do for my experiment is, does wax affect the speed of skiing? I’m also planning on testing the wax in different conditions, and at different slope angles. This seems like a very interesting project, because I really like skiing and snowboarding. Last year my project wasn’t very interesting to me, so I’m glad I picked a…

Lesson 1: Investigating physical forces. Learning objectives: Students will be able to investigate and explain how applying or removing physical forces of varying intensity can cause objects in their environment to move, stop moving, stay at rest, or change direction. Content: Wind/ physical force:Collected from http://handmadekidsart.com/wind-power-car-races/ -The surface area contacting the wind force will affect the movement. -The high speed of the wind will allow the object to move faster.…

exert an equal and opposite force on each other. This is known as the ground reaction force.12 The position and acceleration of the runner's center of mass regulates the direction and magnitude of the ground reaction force. For instance, a runner sprinting from a standstill. Throughout the initial phase of acceleration, the body is inclined forward and therefore the center of gravity falls in front of the contact surface. After many gait cycles, the runner reaches top speed and their center of…

without breaking the egg. In order to make this happen, an investigation must be conducted on the forces acting upon gravity, crumple zone theory, and energy transfer and absorption. The world is made up of matter and energy (Cool Cosmos, 2015). Matter is made up of atoms and molecules and these atoms and molecules are always in constant motion because of energy (Cool Cosmos, 2015). Gravity is a force pulling together all matter. When there is more matter, there is more gravity, so matter…

Analysis/Discussion: This graph above shows that different heights does affect the speed of a shuttlecock. On the x axis, the data is the height of where the shuttlecock is dropped from, while the y axis is the average speed (m/s). The height where the shuttlecock is dropped increases, as the average speed of each height increases as well. The result of the graph is shown that the line keeps on increasing even if it is not a straight line graph. These results support my hypothesis, which states…