What is the coefficient of static friction between a pea and a tilted plate at an angle of 15 degrees or more?

To determine the coefficient of static friction between a pea and a tilted plate at an angle of 15 degrees or more, we can use the relationship between the angle of inclination and the coefficient of static friction. The coefficient of static friction is the ratio of the force of friction to the normal force acting on the object.

At a certain angle, the static friction must counteract the gravitational component that is trying to slide the object down. The relationship can be mathematically expressed with the tangent of the angle of incline: as the angle increases, the static friction must be sufficient to prevent sliding.

For angles around 15 degrees, the tangent of the angle is approximately 0.27, which closely correlates with the value of 0.27 for the coefficient of static friction. This indicates that at an angle of 15 degrees, the static friction force is effectively equal to the gravitational component attempting to slide the pea down the plate, and thus, 0.27 is a reasonable and commonly encountered coefficient in many scenarios involving low-friction materials like peas and tilted surfaces.

While the other options might reflect different scenarios or materials with higher or lower frictions, 0.27 correctly captures the static friction characteristic at an angle of tilt that just