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Weight is extremely useful in determining the frictional force on an object. Say we have a box on a level surface. The box has a weight of mg(mass times the gravitational constant). Since the box is still, and it is being supported by the ground, there is an equal and opposite force that is being exerted on the box by the ground, which pushes it up. This is known as the normal force. The force of Friction is defined as the greek letter mu(which is the coefficient of friction for the two materials against each other)times the normal force, which in this case is mg. Mu also varies depending on wether or not the box is moving in contact with the ground. A different coefficeint of friction is used instead of the one when the box is at rest. The frictional force on the object is always greater when the object is at rest than when it is sliding. Hope this helps!
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Force that resits motion?
Force that resists motion is frictional force, viscous drag
What is the basic metric unit of weight?
Weight is the mutual gravitational force between the earth and any object on it.The basic unit of force is the Newton .
What is the independent controlled and dependent variable of how mass effects the force of friction?
The independent variable is mass. The dependent variable is the frictional force.
SI measure of force and weight?
Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.
Are weight and mass he same thing?
No. The relationship is: weight = mass x gravity Mass causes both weight, and inertia. Weight is the force of attraction by gravity, and also depends on the gravitational field, not just on the mass. For more information, check the Wikipedia article "Mass versus weight".
