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.
Follow-Up #1: friction types. Yes. Friction is a 'catch all' phrase for any force opposing the relative motion of objects in contact. Examples include the 'friction' supplied by a parachute in air, or the force opposing the sliding motion of a brick on a table, etc, etc. w.