Question

Describe the factors that cause static friction between two surfaces to increase

Answer 1

Mass and the type of surface.

Step-by-step explanation:

The friction that acts between two or more than two objects that are at rest with respect to each other is called static friction.

Mathematically, it can be written as :

`F=\mu mg`

Where,

`\mu` is the coefficient of static friction.

m is the mas of an object

g is the acceleration due to gravity.

So, from above equation it is clear that the static friction between two surfaces increase with the increase of mass and the roughness of the surface.

Answer 2

Let's consider an object on a horizontal surface. The magnitude of the frictional (static) force is given by:

`F=\mu mg`
where m is the mass of the object, g is the gravitational acceleration, and \mu is the coefficient of static friction.

Looking at the formula, we see that there are mainly two factors that affect the magnitude of the frictional force:
- the mass of the object: m. The greater its mass, the larger the frictional force
- the coefficient of friction,
`\mu`. This coefficient becomes larger when the roughness of the two surfaces increases.

So, we can summarize the answer as follows: the factors that cause static friction to increase are the mass of the object on the surface and the roughness of the two surfaces.