Unfortunately, as this is a text-based platform, I am unable to view the captionless images labeled A, B, C, or D that you're referring to. To determine which graph represents negative acceleration, I can provide you with some general advice on how to identify such a graph.
Firstly, acceleration is a vector quantity that measures the rate at which an object's velocity changes over time. Negative acceleration, also known as deceleration, means that the velocity is decreasing over time.
When looking at a graph of velocity versus time (v-t graph), negative acceleration will be indicated by a downward sloping line, assuming the positive direction is upward on the chart. The steeper the slope, the greater the magnitude of the negative acceleration. If the velocity line goes from a positive value towards zero or a negative value, that indicates the object is slowing down or accelerating in the opposite direction.
If you are looking at a position versus time (x-t graph), negative acceleration may be depicted as a curve where the slope (velocity) is decreasing over time. In this case, if we're considering a graph where positive velocity is upwards, the line would curve downwards, with the concavity pointing upwards, indicating that the object is losing speed.
If these graphs are acceleration versus time (a-t graph), negative acceleration is even easier to identify. Any segment where the acceleration value is below the zero line (assuming up is positive) represents negative acceleration.
Without the images, this is the most accurate advice I can give. If you provide me with more context or describe the graphs, I can help you further identify which graph represents negative acceleration.
2 of 20 Items
Question
Which graph represents negative acceleration?
Captionless Image
Responses
A
A
B
B
C
C
D
1 answer