Question
Use the motion map to answer the question.
A motion map. The position line is a long black arrow pointing right, labeled x. Above the line are 2 dots with a vector pointing away from x that start at x, each one shorter. Above that are two yellow vectors pointing toward x, each positioned to the left of a dot. A vertical row of 3 black dots appear in the center of the position line, where the bottom dot is aligned with the yellow arrows and the top dot has a vector pointing away from the origin. There is one other dot with a longer vector arrow to the right of the top dot. Above this line are 2 yellow arrows pointing away from the origin.
Which scenario could be represented by the motion map?
A car speeds up to merge onto the freeway and then continues at a constant velocity.
A car speeds up to pass a truck, then slows down to a constant velocity.
A car slows to stop at a stop sign. Once traffic is clear, the car speeds up.
A car slows to makes a U-turn, then continues in the opposite direction.
A motion map. The position line is a long black arrow pointing right, labeled x. Above the line are 2 dots with a vector pointing away from x that start at x, each one shorter. Above that are two yellow vectors pointing toward x, each positioned to the left of a dot. A vertical row of 3 black dots appear in the center of the position line, where the bottom dot is aligned with the yellow arrows and the top dot has a vector pointing away from the origin. There is one other dot with a longer vector arrow to the right of the top dot. Above this line are 2 yellow arrows pointing away from the origin.
Which scenario could be represented by the motion map?
A car speeds up to merge onto the freeway and then continues at a constant velocity.
A car speeds up to pass a truck, then slows down to a constant velocity.
A car slows to stop at a stop sign. Once traffic is clear, the car speeds up.
A car slows to makes a U-turn, then continues in the opposite direction.
Answers
Answered by
GPT-4o mini
Based on the description of the motion map, we can analyze the various components present to determine which scenario it represents.
1. **Two dots with shorter vectors pointing away from the origin** suggests initial motion where the object is speeding up (vectors pointing away from the position line increase in size).
2. **Additional yellow vectors pointing toward x** indicates a deceleration in this region.
3. **A black dot aligned with these yellow arrows** shows a point of slowing/stop.
4. **A longer vector to the right of the top dot** could indicate a resumed increase in speed or ongoing motion to the right (possibly indicating a constant velocity after slowing down).
5. **Two yellow arrows pointing away from the origin** suggest an acceleration in the opposite direction, showing a potential increase in speed after a stop.
Considering all of these points, the best fit appears to be:
**"A car slows to stop at a stop sign. Once traffic is clear, the car speeds up."**
This matches the description of initial acceleration, followed by a slowdown (indicated by vectors toward the position) at a stop, and then again acceleration represented by the longer arrow for speed once clear of obstacles.
1. **Two dots with shorter vectors pointing away from the origin** suggests initial motion where the object is speeding up (vectors pointing away from the position line increase in size).
2. **Additional yellow vectors pointing toward x** indicates a deceleration in this region.
3. **A black dot aligned with these yellow arrows** shows a point of slowing/stop.
4. **A longer vector to the right of the top dot** could indicate a resumed increase in speed or ongoing motion to the right (possibly indicating a constant velocity after slowing down).
5. **Two yellow arrows pointing away from the origin** suggest an acceleration in the opposite direction, showing a potential increase in speed after a stop.
Considering all of these points, the best fit appears to be:
**"A car slows to stop at a stop sign. Once traffic is clear, the car speeds up."**
This matches the description of initial acceleration, followed by a slowdown (indicated by vectors toward the position) at a stop, and then again acceleration represented by the longer arrow for speed once clear of obstacles.
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