What two factors affect the force of friction? question 3 options: weight of the object and size velocity and roughness of surface mass of the object and velocity roughness of the surface and weight of the object

The roughness of the surface and the weight of the object looks like the best answer. Hope this helps!

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.