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.
The force of friction acts in opposition to motion. Therefore it is the force of friction which must be balanced in order to keep an object in motion in a constant velocity. Without friction, an object in motion at constant velocity would remain so unless acted upon by an unbalanced force.