Solving Motion Graphs: Answers to A & C Questions

In summary, The conversation is about a person who is struggling with getting the correct answers on a few problems involving motion graphs. They are looking for help in understanding how to get the answers, and have attached the motion diagrams for reference. The question is about ranking the velocities of objects in the motion diagrams and finding the ratio of velocities between two objects.
  • #1
sythetickitty
11
0
I keep getting the wrong answers on a few problems I am working on. Could anybody tell me how do get the answers from these motion graphs please? Thank you! (They are attached)

The question is as follows for motion_diagram1.jpg

The figure below shows 3 motion diagrams A, B, and C. The time intervals are the same in all 3 cases, and the objects move from right to left. You have to rank the 3 cases in decreasing order of the velocities. Which ranking is correct?

a. A > B > C
b. A > C > B
c. B > C > A
d. C > B > A
e. C > A > B


The question is as follows for motion_diagram1.jpg

The figure below shows 3 motion diagrams A, B, and C. The time intervals are the same in all 3 cases, and the objects move from right to left. What is the value of the ratio VC/VA where VA is the velocity of object A and VC is the velocity of object C?

a. 4
b. 2
c. 1
d. 0.5
e. 0.25
 

Attachments

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  • motion_diagram2.JPG
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  • #2
You may rather want to post a link to the diagrams.
 
  • #3
nevermind..........
 
Last edited:

FAQ: Solving Motion Graphs: Answers to A & C Questions

1. How do you interpret motion graphs?

Interpreting motion graphs involves understanding the relationship between time and distance or velocity. The slope of a distance-time graph represents the speed of an object, while the slope of a velocity-time graph represents the acceleration of an object. The shape of the graph can also indicate the direction of motion.

2. What is the difference between a distance-time graph and a velocity-time graph?

A distance-time graph shows the distance an object has traveled over a period of time, while a velocity-time graph shows the velocity (speed and direction) of an object over a period of time. The slope of a distance-time graph is the speed of the object, while the slope of a velocity-time graph is the acceleration of the object.

3. How do you calculate speed from a distance-time graph?

To calculate speed from a distance-time graph, you can find the slope of the graph by dividing the change in distance by the change in time. This will give you the average speed of the object. You can also find the instantaneous speed by looking at the slope of a tangent line at a specific point on the graph.

4. What does a flat line on a distance-time graph indicate?

A flat line on a distance-time graph indicates that the object is not moving, as there is no change in distance over time. This could also indicate that the object is moving at a constant speed.

5. How can you use motion graphs to predict future motion?

You can use motion graphs to predict future motion by looking at the shape and slope of the graph. If the graph is a straight line, the object will continue to move at a constant speed. If the graph is curved, the object's speed is changing and you can use the slope of the tangent line to determine the object's speed at a specific point in time. You can also use the graph to predict the distance the object will travel over a certain period of time.

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