# Effect of motion in friction calculation

• bretthydra
In summary, friction is a force that resists motion between two surfaces. The amount of friction is affected by the motion between the surfaces, and is represented by the coefficient of friction. Motion is incorporated in friction calculations through the use of the coefficient of kinetic friction, and can be reduced by using a lubricant between the surfaces.
bretthydra
In fig.1 (attached), the formula for calculating the angle at which the block will slide down the ramp is tanθ=µ where µ = coefficient of friction.
Will this change if the ramp and block where moving at a constant velocity(V) in the direction shown as per fig.2 (attached)?

You didn't attach any figures, but what do you think? How would the equations that lead to the answer you quoted change under constant velocity motion?

## 1. What is friction?

Friction is a force that resists the relative motion between two surfaces in contact with each other.

## 2. How does motion affect friction?

Motion plays a significant role in determining the amount of friction between two surfaces. The force of friction increases as the two surfaces move against each other, and decreases as the motion decreases.

## 3. What is the coefficient of friction?

The coefficient of friction is a dimensionless number that represents the amount of friction between two surfaces. It is dependent on factors such as the texture and materials of the surfaces, as well as the amount of force applied.

## 4. How is motion incorporated in friction calculations?

Motion is typically incorporated in friction calculations through the use of the coefficient of kinetic friction, which represents the friction between two surfaces in motion. This value is generally lower than the coefficient of static friction, which represents the friction between two surfaces at rest.

## 5. How can motion be used to reduce friction?

Motion can be used to reduce friction by applying a lubricant, such as oil or grease, between the two surfaces. This allows for smoother motion and reduces the amount of friction between the surfaces.

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