where is the centripetal acceleration. The direction of the force is toward the center of the circle in which the object is moving, or the osculating circle (the circle that best fits the local path of the object, if the path is not circular). The speed in the formula is squared, so twice the speed needs four times the force.
PVA (polyvinyl acetate). PVA's are the traditional wood glues, and some of the most common adhesives. They are also called aliphatic resins. They provide a strong wood-to-wood bond but will not adhere strongly or consistently to nonporous materials, such as metal or plastics.
Gorilla Wood Glue, a PVA glue, offers the benefits of an easy-to use, water-based adhesive, with the holding power Gorilla is known for. The glue is incredibly water resistant and dries a natural color that offers an invisible bond line for your projects.orilla Wood Glue is a water-based polyvinyl acetate (PVA) and will not foam as it dries. Original Gorilla Glue, however, does expand 3â4 times the amount that you apply.