Final answer:
The question seems to cover the concept of variables and constants within physics problems. Without full context, it is difficult to answer definitively, but generally, in physics, variables are measurable quantities that can change, and constants have fixed values. Specific examples of constants might include distances and the number of flights, while variables could be the stopping distance of a car or the velocity of a person.
Step-by-step explanation:
The main question presented here appears to be dealing with understanding the role of variables and constants within various physics problems related to kinematics and dynamics.
However, since some parts of the question seem to be assumptions or part of a larger problem which isn't fully included, it is hard to give a specific answer to the options provided (A, B, C, or D).
In physics, particularly when dealing with real-life problems, variables are any measurable factors, features, or quantities that can change or be changed (e.g., the speed of a car or the mass of an object), while constants are quantities that have a fixed value (e.g., the acceleration due to gravity).
For example, if we consider the movement of two people, Daniel and Cliona, as part of the physics question, then they are the variables, as different attributes related to them (such as their location or speed) can change during the problem.
Distances (such as 8000 km, 100000 km), numbers of flights, and coefficients of friction would be considered constants as they remain the same throughout the problem.
Let's consider a specific example from the information provided:
- A car of mass 1000 kg traveling at 100 km/h applies its brakes - here, the car's mass and initial velocity would be constants, while the stopping distance and velocity at any given time would be variables.
Referring to the options provided, without additional context it is challenging to definitively identify the correct set of variables and constants without knowing the specific scenarios being addressed.
Typically, people's names would not be considered variables unless they correlated with a certain measure that could change within the given problems (e.g., the distance each person travels).