The Coefficients Of Static And Kinetic Friction Essay

Where τ (N.m) is torque, F (N) is the acting force on the system, θ is the angle in which the force acts on the object, and l (m) is the distance of the acting force from the fulcrum. This shows that a larger force will cause a greater rotation than a smaller force does. However, the angle of the force is also important, and if

To result in a net zero force, the other vector would have to be of the same magnitude as the one shown but in the opposite direction. The stone pushes down on the ground with a certain force and the ground pushes up on the stone with an "equal and opposite" force. the normal force vector

1. The force of the window on the bug because the bug is just flying, but the force of the window at a given speed is much greater creating the force to splatter the bug.

I chose to find this out because I like working with wood. My hypothesis is that the oak wood will win because of the weight. The weight of the wood will make it go fast because of the downward momentum.

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

I utilized the coefficient of friction values based on skid testing conducted by the Institute of Police Technology and Management, (IPTM). IPTM testing, indicates a coefficient of friction of .90 - 1.50 for a vehicle furrowing.

In this experiment,we applied Newton`s first law of motion. It descripes the external force as the sum of all external force applied to the object, which equals zero in equilirbium. As we have seen in the experiment, to reach equilibrium all the forces applied on an object shoud cancel each other out and total force reaches zero.Using different forces and weights we were able to reach equilibruim ineach trial of this

Students will understand the relationship between the force applied to an object and resulting motion of the object.

In this lab, we have explored the concept of the conservation of energy through the use of an isolated system. Tools such as a glider upon an air track with negligible friction allowed us to mimic an ideal isolated system. Using the values we measured for (velocity, time, and distance) we can see the application of conservation of energy through the transfer of the potential energy of the small mass to the kinetic energy of moving glider. In the graph (ΔPE vs. KE), our value (-1.197 +/- 0.05916) is not entirely consistent to the expected value of -1. Furthermore, in the graph for velocity vs. time plot, our value of 0.5067 m/s2 +/- 0.01709 m/s2 is not consistent with the calculated expected value of 0.646 m/s2. The probable cause of these slight inconsistencies with the our expected values is the unbalanced dropping of the small mass during the experiment. To have a more justified value, we could have done more trials to find the average

2. Force is equal to mass times acceleration, and a change in motion is proportional to the force applied.

There are two types of friction. They are static friction and kinetic friction. Static friction is the friction you have to overcome to make an object move and kinetic friction is friction that is happening while an object is in motion. An example of static friction is like trying to push a car down the road. It is harder to push from a stop than from a roll. An example of kinetic energy is like your tires on the pavement while you are driving down the road.

HYPOTHESIS: Without the effects of friction the momentum will be conserved in the isolated system. In all three experiments the momentum before the interaction will equal the momentum after the interaction.

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.

The purpose of this experiment was to test the conservation of mechanical energy. This was done so by using two different methods: (1) to test the conservation of mechanical energy using a cart with a load set on a PASCO track attached to a hanging mass by a string and pulley, and (2) to test the conservation of mechanical energy using a spring attached to a hanging mass. . In the first part of the lab involving gravitational potential energy, the theoretical value to be consistent with the law of conservation of mechanical energy was 0 J/m, but instead we obtained a value for ∆E/∆y to be 0.04772  0.00209 J/m. In the second part of the lab involving spring potential energy, the net change in energy should have been 0J, yet we calculated a value of 3.14  0.13 J. Although our result for the first part of the lab was quite accurate and close to 0 J/m, our result for the second part was not consistent with the theory since the value greatly deviates from zero. The cause of this may have been certain errors while performing the lab.

Friction in our game will mainly come into play with the enemy units. It will vary based on the world we are currently on – such as the ice stage having less ground friction than the flying platform stage. There are a few ways we plan to use friction. One such way being that enemy units on some planets, like the ice world, will have a chance to ‘slip’ which will be like a de-buff that stuns them temporarily and prevents them from moving.