When dealing with a rolling object, understanding static friction is crucial to determine its motion. Static friction is the force that prevents the object from sliding when in contact with a surface. To find the static friction of a rolling object, you can follow these steps:

1. Identify the rolling object: Before calculating static friction, you need to know the properties of the rolling object, such as its mass, radius, and material.

2. Determine the normal force: The normal force is the force exerted by a surface that supports the weight of the object. It is perpendicular to the surface and can be calculated using the formula: N = mg, where m is the mass of the object and g is the acceleration due to gravity.

3. Calculate the applied force: The applied force is the force that is exerted on the object to make it roll. It can be found by analyzing the external forces acting on the object.

4. Use the equation for static friction: The static friction force (Fs) can be calculated using the formula: Fs = μs*N, where μs is the coefficient of static friction and N is the normal force. The coefficient of static friction is a property of the materials in contact and can be found in physics reference tables.

5. Understand the physics behind it: Static friction comes into play when there is no relative motion between the object and the surface. When the applied force is less than the maximum static friction force, the object remains at rest. Once the applied force exceeds the maximum static friction force, the object starts to roll.

It's important to note that the coefficient of static friction can vary depending on the materials in contact, so it's essential to consider this factor when calculating the static friction of a rolling object. Additionally, understanding the physics behind static friction can help in predicting the behavior of rolling objects and designing systems where friction plays a crucial role.

By following these steps and understanding the physics behind it, you can effectively find the static friction of a rolling object. This knowledge is essential for engineers, physicists, and anyone interested in understanding the mechanics of rolling objects.