Final answer:
The assertion that kinetic friction is independent of the object's speed is false; kinetic friction is calculated using the coefficient of kinetic friction and the normal force.
Step-by-step explanation:
Kinetic friction is the resisting force that occurs between two surfaces in relative motion, and it is calculated using the coefficient of kinetic friction and the normal force. This coefficient typically has a constant value for a given pair of surfaces under specific conditions. However, the force of kinetic friction itself is not dependent on the speed of the object's movement. Once motion begins, it generally takes a lesser force to keep the object in motion than to start moving it, due to kinetic friction usually being less than the maximum static friction.