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.
stir the glow agent into the glue gel or pva solution you want 1 8 teaspoon of zinc sulfide powder per 30 ml 2 tablespoons of solution if you cannot find zinc sulfide powder you can stir in some glow in the dark paintou can double triple etc the recipe if you want more slime the ratio is 3 parts pva or glue solution to 1 part borax solution with a little glow in the dark agent thrown in measurement isn t critical first let s prepare the glue gel or polyvinyl alcohol pva solution