Final answer:
The Coefficient of kinetic friction of a horizontal air track with a glider is likely A) 0 (No friction) as 'air track' implies an environment created to minimize friction as much as possible.
Step-by-step explanation:
The Coefficient of kinetic friction of a horizontal air track with a glider is a measure of the frictional resistance experienced by a moving object. In an ideal situation where there is no friction, this coefficient would be 0 (Option A). If the friction is at its maximum, meaning the surfaces are very rough and no movement is possible without overcoming a large force, the coefficient would be 1 (Option B). A moderate amount of friction, where movement is possible with some resistance, would correspond to a coefficient like 0.5 (Option C). Negative friction, as indicated by a coefficient of -1 (Option D), does not exist; friction always opposes movement, not aids it, so the coefficient cannot be negative.
Considering the principles of friction taught in physics, where a coefficient of 0 indicates no friction and 1 indicates maximum possible friction for surfaces in contact, the correct answer to the question is A) 0 (No friction), as the term 'air track' suggests an environment designed to minimize friction to nearly zero.