Question 17

Graph C best represents the movement of an object moving toward a stationary observer at a constant speed.

Graph C illustrates a linear relationship, which is indicative of constant speed as the object approaches the observer. This means that the distance to the observer decreases uniformly over time.

A) Graph A

Graph A does not represent constant speed as it shows a non-linear relationship. This indicates that the object's speed is changing, which does not align with the description of the object moving at a constant speed toward the observer.

B) Graph B

Graph B also fails to depict the correct movement because it suggests an acceleration or deceleration rather than a constant speed. The curve indicates varying distances over time, which contradicts the scenario presented in the question.

C) Graph C

Graph C accurately represents the situation described, showcasing a straight line that slopes downward. This linear representation signifies that the distance between the object and the observer decreases steadily, confirming the constant speed of the object moving toward the observer.

D) Graph D

Graph D is incorrect as it suggests an erratic movement pattern rather than a consistent approach toward the observer. The fluctuations in the graph imply changes in speed, which is not consistent with the definition of constant speed.

E) Graph E

Graph E is not applicable in this case as it does not provide a clear representation of the object's movement toward the observer. Without a specific format or description, it cannot be considered a valid choice.

Conclusion

Graph C is definitively the correct answer as it effectively represents an object moving toward a stationary observer at a constant speed with a linear decrease in distance over time. The other options fail to illustrate this consistent approach, either depicting changes in speed or incorrect movement patterns.