Kinematics

It is divided in two phases, the stance phase and the swing phase. During the stance phase, the lower extremity is in contact with the ground. This phase is formed by 5 different stages (the Heel Strike, Foot Flat, Mid Stance, Heel Off and Toe Off) which form the whole movement. In contrast, during the swing phase, the current limb, is not in contact with the ground. This phase has three stages ( Acceleration, Mid Swing and Deceleration) that generates the entire movement. • The aim of this study is to investigate the kinematic and kinetic differences in barefoot and shod running. It has been hypothesized that there will be significant kinematic and kinetic differences between barefoot and shod running . It has been hypothesized that there will be no significant kinematic and kinetic differences between barefoot and shod running Methods: Participants: The participants that took part on this study were 3 male students aged between 19-23 years old, with average height and weight. All three of them have similar fitness conditions, because they are currently exercising by going to the gym or playing sports such as football. None of the participants mentioned any health problems or physical…

ground reaction impulses. In the most recent study from our lab we have shown that the activity of plantarflexors are modulated to change both the braking and the propulsive impulses (details at www). Visual perturbations were used in these experiments to elicit transient responses in muscles. It is not clear whether mechanical perturbations will result in the same changes during transient responses. Mechanical perturbations of walking surface can simulate natural conditions that result in…

(〖ms〗^(-1)) ∆ = change in h = height Kinetic Energy is the energy an object possesses due to motion. In layman’s terms, the greater the speed the greater the Kinetic Energy. Kinetic Energy is calculated by the formula: KE= 1/2 mv^2 Where: m= Mass (kg) v= Velocity (〖ms〗^(-1)) These different forms of energy are connected as when GPE is converted to Kinetic Energy is gained and vice versa. For example, when a ball is held in the air, it contains GPE based on its distance from the ground…

Using kinematic equations, you will determine where a target will land. This experiment ignores air resistance. This projectile is launched with a speed of v(0) at an unknown angle. Therefore, the shape of the motion is predicted to be parabolic. Procedure The nerf gun is set up to a ring stand at approximately 50 cm above the table. Pick an unknown angle other than 0 or 90 degrees to launch the nerf bullet. Adjust the launcher so that it projects the projectile onto the table. For the first…

Have you ever wondered what it is like falling through the solar system? Well on this ride you will experience something very similar. You will pass each planet in the solar system while being forced up and over hills, loops, and turns. Riders will start on a hill reaching about 50 ft, reaching the most potential energy they will have on the entire ride. Following after that, they will plummet down the hill. As a consequence, they will experience the feeling of weightlessness, free fall, huge…

A ball, and a feather dropped at the same height will hit the ground at the same time when placed in a vacuum space. This is because acceleration of motion is the same for both object, and in this experiment, we are going to calculate accelerated motion using inclined planes. In this experiment, we will see whether “distance traveled is directly proportional to the square of the time”, and “if speed of a falling object depend only on the height from which it falls”. This experiment will give us…

The two graphs of the distance vs. time graph along with the velocity vs. time graph, accurately supports the hypothesis formed at the beginning of this experiment. From the interpretation of the first graph, the chart vaguely shows the changing velocity (acceleration) as well as positive velocity of the objects motion (as seen from the slight curve upwards). However, from another perspective, it might seem as if the diagram is showing a constant, positive velocity as the line is linear with no…

In a day to day situation, if we want to find how much time does it take a person to go from Point A to Point B, we can use the equation T= D/V. In this equation, D represents the distances in meters between Point A and Point B, and V represents the speed (meter/ second) of how fast a person walks. In mathematical terms, it uses the total distance traveled to divided by the time to get an estimation of the average speed(second). But, if we want to find out the age of the universe ? Then, we…

When you see the coaster line. The entrance door has an amazing and wacky art design with many colors. As soon as you enter the coaster there is a decent sized room with multiple mirrors that make you look like different things such as one mirror could make you look like you are very tall and skinny or another could make you very chubby and short. Once you pass that room you go into another room that is just glass above you and to your sides so it looks like you are in a tube under water which…

Wall-e is a new, dare say one of the best upcoming roller coasters and it is based off of the sensational movie Wall-e made by Disney’s Pixar! In the movie, the plot takes place in 2805 where humans have abandoned Earth on the account of it was not in the ideal shape for humankind to survive in. Therefore, humans left robots to clean up the mess they had made where after some time, the Earth became habitable once more. Mankind had been sending extraterrestrial vegetation evaluators or EVE to…