Question

consider the dot diagrams for objects a, b, and c. the arrow represents the direction of motion. match the motion of objects a, b, and c to one of the lines on the graph. numbers can be used only one time.
a matches graph: --
b matches graph: --
c matches graph: --

Explanation:

Step1: Analyze Object A

Object A has dots getting closer together on one - side and farther apart on the other, indicating it first slows down (negative acceleration) and then speeds up (positive acceleration) in the positive direction. This matches graph 4.

Step2: Analyze Object B

Object B has evenly - spaced dots, which means it is moving with a constant positive velocity. This matches graph 1.

Step3: Analyze Object C

Object C has dots getting closer together, indicating it is slowing down while moving in the positive direction. This matches graph 2.

Answer:

A matches graph: 4
B matches graph: 1
C matches graph: 2