Ground reaction force

Gunnery Sergeant (GySgt) Jason R. Pay is enthusiastically recommended for the Navy and Marine Corps Commendation Medal for meritorious service while serving as the Logistics Management and Assistance Training (LOGMAT) Chief, Aviation Logistics Department, Marine Wing Headquarters Squadron 2, 2d Marine Aircraft Wing (MAW) from 15 June 2014 to 15 June 2017. Demonstrating superior leadership, in-depth knowledge, and exemplary professionalism, GySgt Pay expertly led the 2d MAW LOGMAT Team. As the…

there is force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. He hypothesized this theory while in the bath. Unfortunately his theory only covered fluid mechanics and didn’t elaborate completely on force. However he was one of the first scientists to discover buoyancy and the displacement of fluids. By 17th century Italian astronomer Galileo Galilei…

Afghanistan: There were many challenges in the military but I am choosing to write about one scenario that made me realize what type of person I am. Even though I had struggle all through school, I was surprisingly good at being a Marine. Once I finished my first year in the military my parents grew to be pretty comfortable with the idea of me being in the corps. I think it is because they saw that I was finally growing up. In the Marine Corps they do not care about excuses and they definitely…

The History of the Development of the Four Fundamental Forces Nature has a total of four fundamental forces. The forces include gravitational, electromagnetic, strong nuclear and weak nuclear force. Gravitational force is the force of attraction between all masses. Every object in this universe is pulling upon other objects. Many scientists came up with logics to explain the science behind gravitational forces. The first one to try was Aristotle in around 330 BC. Aristotle believed Earth and…

In general, the experiment succeeded in demonstrating free-fall by dropping a tennis ball. Distance and time were documented to calculate velocity and acceleration, the quantities involved in linear kinematics. Graph 1 (distance vs. time) suggests a commonsensical relation - longer distance yields longer time. The only exception is at 1.0 m, where its time value (0.42 s) is less than that of a shorter distance (0.5s for 0.5 m distance). Average time was used to construct the graph, and there…

Rocket technology is extremely wasteful, and being a one shot wonder, they show no promise of a sustainable future. When a rocket is launched, it is propelled based upon newton’s 3rd law of motion; “For every action, there is an equal and opposite reaction.” This is done by using on board propellant which is then used to create thrust from a rocket engine, by ejecting thrust in the opposite direction to the rocket, it is propelled forwards at very high speeds. This propellant is either a liquid…

moves with uniform velocity, until it is acted on by a resultant force. 2. Acceleration is dependent on the forces acting upon an object and the mass of the object. Therefore, if the force is increased, the acceleration is increased. And the more mass the object has, the more acceleration decreases. So the resultant force (F) is equal to mass (m) times acceleration (a) (F = ma). 3. For every action, there is an equal and opposite reaction. Or every action always reacts in the opposite…

unless acted upon by another force. The second law states, acceleration of an object is exerted by a net force is directly proportional to the magnitude of the net force. And the third law states, for every action there is an equal or unbalanced force. Around 400 BC a Greek named Archytas developed a wooden pigeon that could move through air. Escaping steam motivate the wires. However the bird used a action-reaction…

Introduction To understand aircraft propulsion it is important to understand the term propulsion first. Propulsion is a means of producing force required for movement of object. The propulsion system has some source of mechanical power and some means of using this power to generate force such as wheels, propellers, legs, etc. Nobody can precisely tell the origin of mankind’s desire to fly as it is lost in the distant past. There are legends of people strapping birdlike wings and jumping of a…

This rib is also suitable for a variety of loading conditions. Forged ribs are manufactured using heavy press-machinery, and are used for sections where very high loads apply. Milled ribs are solid structures, manufactured by milling away excess material from a solid block of metal, and are also used where very high loads apply. The stringers on the skin panels run in the length of the wing, and so usually need to bridge the ribs. There are several methods for dealing with this problem. The…