How does increasing mass affect the force needed to overcome friction?
Imagine pushing a a box on a hardwood floor. The more you put in the box, the harder it is to move, because the box is exerting more force on the floor causing the two surfaces to "interlock" more on a micro level. This means that the heavier the box is, the more firction it has with the floor.
Which is greater to overcome fluid friction or sliding friction?
As a rule, sliding friction is greater to overcome than fluid friction. However, the variables could be manipulated to show it in both lights. The mass, weight, surface area, types of surfaces, speed, ect... are all variables in which the amount of force is needed to overcome sliding friction. While density and viscosity are major variables in fluid friction.
How does the surface affect the force needed to drag a box of toys?
Not so much the surface but the factor of friction is what will affect the force needed to drag a box of toys. The equation: where is the force exerted by friction (in the case of equality, the maximum possible magnitude of this force). is the coefficient of friction, which is an empirical property of the contacting materials, is the normal force exerted between the surfaces. In simple terms, the slicker the surface, the less…
How does the weight of an object affect the force needed to slide the object?
When two surfaces slide overreach other, there will be a force acting against the motion, called friction. The force needed to push an object along a surface is the force necessary to overcome the friction between the object and the surface. This frictional force depends on two things. Firstly, the nature of the object and also the friction of the surface itself. Secondly, the force between the object and the surface, so it will be…
Why is kinetic friction less than the limiting friction?
By my understanding, this is due to the fact that it is easier to keep a moving object in motion than it is to accelerate it from a resting position. When a force is exerted on a stationary object, acceleration relies on that force alone. However, with a moving body, the momentum of the object reduces the force needed to overcome friction.
How is temperature related to a chemical reaction rate?
Temperature increases the reaction rate constant 'k'. This is done by increasing the energy of the reactants which makes it easier for them to overcome the energy barrier needed for a reaction. Of course increasing the temperature will increase the rate of reaction of an endothermic reaction but will limit the speed of an exothermic reaction
How does friction affect motion?
Friction is a very helpful thing and with out it you couldn't move, speed up, slow down, change direction, bend, or twist. Without friction nothing would ever happen. Friction can oppose motion or it can make it difficult for an object to move across a surface. Friction both helps an hinders every thing we do. the object would not move without friction The friction acts in the opposite direction to that of direction of motion…
Difference between static and kinetic friction?
Static friction describes the force needed to initially move a stationary object. There are tables of coefficients of static friction. The force needed to overcome static friction depends on the material making up the object, the surface the object rests on, the mass of the object and the acceleration of gravity. Static friction is generally higher than kinetic or sliding friction. Kinetic friction (sliding friction) describes the force needed to keep an object moving along…
Can the number of pulleys affect the amount of force to lift a heavy objects to a high place?
Increasing the number of pulleys divides the force required to lift up a heavy object; increasing the number of pulleys decreases the force needed by the person (or motor) pulling the first end of the pulley system. However, it is important to know that it does not affect the total work needed to lift up the object. As the force is decreased, the distance of rope needed increases to compensate for a conserved amount of…
What does friction allow us to do?
In general, friction acts to prevent objects in contact with each other from moving with respect to each other. Friction keeps your furniture where you place it. The friction between your feet [or shoes] and the ground enables you to walk. When you apply the brakes in a car, friction causes the wheels to stop rotating . Friction holds a screw or nail into a board and a nut onto a bolt. Friction between your…
Why viscosity of ethyl alcohol is greater than that of ether?
By definition, to overcome viscosity we need to apply enough kinetic energy to overcome the intermolecular forces of attraction of a substance. The harder it is to overcome this, the more viscous the substance is. And we all know that hydrogen bonds are the toughest intermolecular bonds to break. This being said if we look at the ethanol molecule it has one hydrogen bond to ether's none. Therefore, more kinetic energy would be required to…
Kinetic frictions is the frictional force needed to start an object at rest into motion?
No, kinetic friction is the friction an object in motion across a surface experiences. Static friction is the frictional force an object stationary on a surface experiences. in nearly all cases static friction is stronger than kinetic friction. To elaborate, say we place a plate on a table. Sitting there, it experiences static friction, which resists our efforts to move it. Once we overcome that frictional force, the plate begins to move, but now it…
What is the formula for horsepower needed to carry 6000 pounds at 55 mph?
I assume you want to transport this on a train, or truck, or something like that. There is no simple relationship. Basically, the only power required to transport something at constant speed is the power required to overcome friction (otherwise, with no friction, zero power would be required to maintain the speed.) However, friction on the road or rails can vary; air resistance can vary depending on the shape of the train or truck, and…
Does clay have more friction than sandpaper?
Yes, clay does have more friction than sandpaper. This is because, clay is a much heavier object/material then sandpaper, therefore if you were to drag a lump of clay on the floor and measured the friction, it would be higher then the amount of friction caused by sandpaper. If the amount of force needed to pull the clay is larger then the amount of force needed to pull the sandpaper, that means that there is…
Where is friction needed in a backhoe loader?
You would need friction between the tires or tracks and the dirt the tractor is sitting. If you have extended legs, you need friction between the pads and the ground. You would want friction in the brakes. A clutch also relies on friction. Technically you could "dig water", but if you are trenching, then one needs friction between the dirt particles. It is also handy to have friction in your seat, steps, and controls.