How do you find the force of friction when given velocity?

How to find force of friction

1. Choose the normal force acting between the object and the ground. Let’s assume a normal force of 250 N .
2. Determine the friction coefficient.
3. Multiply these values by each other: (250 N) * 0.13 = 32.5 N .
4. You just found the force of friction!

Can there be friction with constant velocity?

Whenever there is relative motion between 2 surfaces, friction will occur, whether velocity is constant or changing. This is called kinetic friction.

Can there be friction without normal force?

Originally Answered: Can friction exist without normal force? NO. It certainly cannot. Friction (f) is defined by the product of the Normal Force(N), and the coefficient of friction(μ; either kinetic (_k, moving object) or static (_s, stationary object)).

How can you make the friction force more what shows you that the force is more?

Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Why is the measured force equal to the frictional force?

When there is relative motion between two surfaces, there is a resistance to the motion. This force is called friction. Friction acts opposite to the direction of the original force. The frictional force is equal to the frictional coefficient times the normal force.

Why are some forces considered to be non contact forces?

Non-contact force occurs due to either attraction or repulsion between two objects such that there is no contact between these objects. There is no field linked with the contact force. There is always a field linked with non-contact force.

What should you use to measure friction approximately?

=Ans》TRIBOMETER Is a instrument is used to measure friction.

How can force be measured?

Force is measured in Newtons, which are units that equal 1 kg * m/sec2. You can calculate the amount of force that an object experiences with the equation force = mass * acceleration.

How do you measure the static coefficient of friction?

To measure the static coefficient of friction under conditions of high contact pressure the object may be clamped between two surfaces. The force necessary to put the object in motion must be halved to obtain the friction force because of the two contacting surfaces.

How do physicists measure the force of friction?

For this physicists are using the coefficient of friction, which measures the force of friction between two objects made of certain materials per unit of pressure. It’s determined experimentally. So, to determine the force of friction theoretically, we have to know the coefficient of friction of materials involved and the pressure between them.

Why does acceleration depend on kinetic and static friction?

Because: Kinetic friction is less than static friction. So as soon as there is motion the force of kinetic friction drops below the force of static friction . While the force downhill that caused the motion stays the same. Therefore there is a net force which causes acceleration and not just motion

What is the frictional force ratio?

The ratio of the magnitude of the frictional force to the magnitude of the normal force when the tangential velocity is large. This value is determined by the material properties of the contacting solid bodies. It is always nonnegative and is often less than one, although values greater than one are possible for high-friction materials.