Final answer:
A student's acceleration on rough ice after the force is stopped becomes zero, assuming no other forces act on her. The coefficient of kinetic friction remains constant and is independent of the relative motion between two surfaces once they are in motion.
Step-by-step explanation:
When considering a student's acceleration on rough ice, we can infer that it would depend on multiple factors including the forces being applied, the coefficient of friction of the surface, and whether any external forces are acting on her. In the absence of any specific information, a generic answer cannot be precisely given. However, if you are asking in the context of a force being applied to accelerate an object on a rough surface like ice and then the force is stopped, the object's acceleration on the rough ice surface becomes zero (assuming we're ignoring other potential forces such as gravity or air resistance, if applicable).As for the coefficient of kinetic friction, this value typically remains constant (option C) and is independent of the relative motion once the objects are in motion. It is worth noting that if a force continues to be applied, the acceleration may change depending on the nature of the applied force and the roughness of the ice, which affects the frictional force. In a real-world scenario, other factors like air resistance and gravity would also need to be considered.