Cable spreading room at Point Tupper. In the electrical wiring of buildings, a cable tray system is used to support insulated electric cables used for power distribution and communication. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial and industrial construction.
Static friction must be overcome. Once a force has been applied that starts the object in motion, the force of kinetic friction is less than its static counterpart. 1 person found this useful. Edit.
Friction is the force which resists the relation motion between two surfaces in (mechanical) contact. It dissipates energy or power in various moving parts of machines & causes irreversibility in various processes. However, it is useful in various situations. Friction enables use to move on a surface or plane.