Final answer:
The correct answer is option a) Straight line.
Step-by-step explanation:
The trajectory of a dot from t=0 to t=2.0 s can vary depending on the forces acting upon it. Without additional context about the forces or context of the question, we can consider common scenarios:
- If the dot represents an object in free fall or a projectile experiencing only the force of gravity after an initial horizontal velocity, its trajectory would be a parabola (option b).
- If the dot represents the back and forth motion of a simple harmonic oscillator such as a pendulum or spring, the graph representing its position over time could resemble a sine wave (option c).
If the dot refers to uniform motion in a straight line, the trajectory would be a straight line (option a). For a negatively charged massive particle between two plates, assuming there's an electric field present, its trajectory would be a rightward-curving parabola if the plates are arranged with the positive plate to the right (option a).
As for the bee flying straight at someone and then back to its hive, assuming the initial direction is positive and the motion is linear, the position vs time graph would look like a downward opening V shape (option a).
The bee moves away in the positive direction, then returns along the same path in the negative direction, and the graph reflects this change in direction without showing acceleration or deceleration.