Question

multiple choice 1 point look at the graph and determine the best description of the objects motion. object is moving at a constant speed in the positive direction for 5 seconds then returns at a constant speed in the negative direction for 5 seconds. object is moving at a constant speed in the negative direction for 5 seconds then returns at a constant speed in the positive direction for 5 seconds. object is moving up a hill at a constant speed for 5 seconds then goes down a hill at a constant speed for another 5 seconds.

Explanation:

1. Analyze the first segment (0 to 5 seconds): The position increases linearly from 0 to 10 meters, which means the object moves at a constant speed in the positive direction.
2. Analyze the second segment (5 to 10 seconds): The position decreases linearly from 10 meters back to 0, which means the object moves at a constant speed in the negative direction.
3. Eliminate incorrect options: The second option reverses the direction order, and the third option refers to hills, which is not indicated by a position-time graph (it only shows position over time, not terrain).

Answer:

Object is moving at a constant speed in the positive direction for 5 seconds then returns at a constant speed in the negative direction for 5 seconds.