Friction

Mr. Friction was once again saving the day from the city’s wicked criminals. He could control the friction of any object at any time. He would cause massive amounts of friction to criminal’s getaway cars which causes them to stop immediately and burst into flames because of the high amounts of friction. He could also lessen friction to cause criminals to lose their balance. Mr. Friction never got sick because of his very robust immune system. If Mr. Friction were to get sick, all friction in Frictiontopia

unit cohesion, it’s important to know the meaning of friction. Friction is in military terms the “cumulative effect of the small” and it’s largely based on chance. The military aims to reduce “natural friction” through strict training and unit cohesion or philia, which is a Greek word for comradeship. (Mackubin) Some people maintain that women undermine unit cohesion and thus, tend to increase friction in the military grounds: Indeed, friction resulting from the presence of women in the military

What material generates the most friction? If a piece of sandpaper under a block of wood goes down a wooden ramp, then it will generate the most kinetic friction. The independent variable is the material placed under the block of wood. The control group is the wood block going down the ramp itself. The experimental group is the materials going on the ramp. The dependent variable is the time. The incline of the ramp, the size of the materials, and the block of wood, are the control groups. The first

[3]. In addition to temperature and humidity, shear stress and friction are also two large components in predicting sacral pressure ulcers. Due to the positioning of the patient, the sacral area is under the largest amount of stress from both friction and shear. As gravity pulls on the upper torso and internal structures, the patient’s skin is resistant to movement as it is held in place by static friction with the medical device. This results in damage to the inner layer of connective

was set in order to explain friction. By adding different weights in both box and string it has been recorded the exact weight needed for the box to move. The weights that have been added until the box start moving at a constant velocity were measured. With the use of the acceleration due to gravity (9.81m/s2) the Normal and Frictional Force were calculate. With the use of this experiment some conclusions have been drawn. For instance the main result is that the friction increases if one of the following

or stop moving, speed up, slow down, change the shape, change the direction or have no affect at all on the object. There are two different types of forces, contact in which an object needs to be touched to affect it this can cause resistance and friction. Non-contact force is when an object doesn’t need to be touched this includes gravity, magnetism and electricity. Forces can be acted upon in any direction and are either balanced being the object is either not in motion or travelling at a constant

regular micro-surface structure in the form of hemispherical pores. Seal performance such as equilibrium face separation, friction torque and leakage across the seal are calculated for a range of seal pressures, pore sizes and pore ratio of the ring surface area. An optimum pore size was found that depends on other variables and corresponds to maximum axial stiffness and minimum friction torque. 2. Wang and Kato[13] presented their work on texturing Silicon Carbide (SiC) seals operating in water for better

turns a circular path are centripetal force, FCP , and friction, Ff . As mentioned in Relevant Physics Topics, the direction of friction opposes the direction of motion, which, in this scenario, is centripetal force, and because centripetal force directs towards the center of the circle, friction directs outside of the circle (Madden et al., 2001). To calculate the safe cornering speed on a level road, centripetal force has to equal friction so that the vehicle isn’t sliding in or out of the road

This experiment is about obtaining data that express the acceleration obtained when the force applied to an object varies. Thus, different hanging masses will be hitched to a cart to observe the impact on the acceleration. As the mass of the cart will remain the same, the purpose of the procedure is to verify the relation between the applied force on an object and its acceleration which is, according to Isaac Newton, F=ma. The results of this experiment are useful because it has an impact on all

Section I: Worksheet 2. Discussion The purpose of this experiment was to analyze the conservation of mechanical energy of a harmonic oscillating spring-system. In addition, this observation involved analyzing to what affect some of the mechanical energy was lost or dissipated into other forms of energy, despite the experiment 's attempt to minimize the dissipation of the energy as much as possible. The first part of the experiment involved calculating the spring force constant (k) of the harmonic