Question

position vs. time
which graph segments
fit the following:
at rest:
fast speed:
slow speed:
going backwards:
going forward:

Explanation:

• At rest: On a position-time graph, a horizontal line means position doesn't change over time, so the object is stationary. Segments A and C are horizontal.
• Fast speed: Speed is the slope of a position-time graph. A steeper slope means higher speed. Segment B has the steepest slope.
• Slow speed: A gentle slope indicates low speed. Segment D has the shallowest positive slope.
• Going backwards: A negative slope means position decreases as time increases, so the object moves in the negative direction. Segment B has a negative slope.
• Going forward: A positive slope means position increases as time increases, so the object moves in the positive direction. Segment D has a positive slope.

Answer:

At rest: A, C
Fast speed: B
Slow speed: D
Going backwards: B
Going forward: D