3. Which TWO graphs illustrate acceleration?
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1 point
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A
B
C
D
E
F
B and C
To determine which two graphs illustrate acceleration, we need to understand what acceleration represents. Acceleration is the rate at which an object changes its velocity over a certain period of time.
Graphs that show a changing velocity over time indicate acceleration. By looking at the given options, graphs B and E appear to illustrate acceleration.
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To determine which TWO graphs illustrate acceleration, we first need to understand what acceleration is. Acceleration is the rate at which an object's velocity changes over time.
In graph A, the object is moving at a constant velocity, which means there is no change in velocity and therefore no acceleration. Graph A does not illustrate acceleration.
In graph B, the object starts from rest and gradually increases its velocity over time. This indicates a positive acceleration since there is an increase in velocity. Graph B illustrates acceleration.
In graph C, the object is moving at a constant velocity once again. As mentioned earlier, constant velocity implies no change in velocity and thus no acceleration. Graph C does not illustrate acceleration.
In graph D, the object maintains a constant velocity for a period of time, then abruptly changes its velocity and continues moving at a different constant velocity. The sudden change in velocity indicates acceleration. Graph D illustrates acceleration.
In graph E, the object starts from rest and moves at a constant velocity. Since there is no change in velocity, there is no acceleration. Graph E does not illustrate acceleration.
In graph F, the object starts with a non-zero velocity, then gradually decreases its velocity over time. This indicates a negative acceleration (deceleration) since there is a decrease in velocity. Graph F illustrates acceleration.
Therefore, the two graphs that illustrate acceleration are graph B and graph D.