For dynamic friction, measure the force required to maintain a constant speed. If you have to pull with 300 N to maintain a constant speed, then friction is pulling back with 300 N. (If the forces were not balanced, there would be an acceleration.)
For static friction, see how much force you need to apply before the object starts moving.
The contact area hardly affects the frictional force. The frictional force depends on the normal force, and the coefficient of friction, which is a property you have to look up (or measure) for every pair of materials.
i am sure that it is not frictional force.....
You can demonstrate that frictional force depends on the nature of the surfaces in contact by conducting an experiment where you measure the frictional force between different surfaces. By varying the types of surfaces (e.g., smooth versus rough), you can observe how the frictional force changes accordingly. The coefficient of friction, which quantifies this relationship, will be different for each pair of surfaces, highlighting the influence of surface nature on frictional force.
Frictional force depends on the nature of the surfaces in contact and the force pressing them together.
The size of the normal force and coefficient of friction determines the size of frictional force.
The size of a frictional force is determined by the roughness of the surfaces in contact and the normal force pushing them together. The frictional force opposes the motion of the objects and increases with the weight of the objects in contact.
The static frictional force is a self-adjusting force. It increases or decreases to match the applied force, preventing the object from moving until the maximum threshold is reached.
The frictional force needed to start an object at rest into motion is the static frictional force. This force must be overcome by an external force before the object can start moving. Once the object is in motion, the kinetic frictional force will oppose its movement.
The frictional force vs normal force graph shows that there is a linear relationship between the two forces. As the normal force increases, the frictional force also increases proportionally. This indicates that the frictional force is directly proportional to the normal force.
Yes, the kinetic frictional force will change if you pull at a new angle. The frictional force is influenced by the component of the applied force parallel to the surface. Therefore, changing the angle will alter this component and affect the kinetic frictional force.
Frictional force is the force that opposes motion between two surfaces.
Yes, the degree to which surfaces push together, known as the normal force, significantly influences the strength of the frictional force. According to the frictional force equation ( F_f = \mu F_n ), where ( \mu ) is the coefficient of friction and ( F_n ) is the normal force, an increase in the normal force results in a higher frictional force. Therefore, the harder the surfaces are pressed together, the stronger the frictional force will be.