Does it can cause rocks to bump against each other contribute to physical weathering

Yes, the process of rocks bumping against each other, known as abrasion, can contribute to physical weathering. When rocks rub against each other due to forces such as wind, water, or gravity, they can break down into smaller fragments. This mechanical action of rubbing and grinding can wear down the surface of rocks and cause them to disintegrate over time. Abrasion is one of the many factors that contribute to the physical weathering of rocks.