Final answer:
To find the coefficient of friction, use the formula: frictional force = coefficient of friction x normal force.
Step-by-step explanation:
The coefficient of friction can be determined by using the formula:
frictional force = coefficient of friction x normal force
In this case, the normal force is equal to the component of the weight of the domino perpendicular to the incline. The weight of the domino can be calculated using the formula:
weight = mass x gravitational acceleration
Once the weight is known, the normal force can be found by multiplying the weight by the cosine of the angle of the incline. Finally, the coefficient of friction can be determined by dividing the frictional force by the normal force.