Sketching Kinematic Graphs for a Person's Movement from a Reference Point

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In summary, the conversation discusses a person's movements from a reference point, starting 50m north and ending at the reference point. The person walks, jogs, and runs, and the question asks for help sketching a velocity vs time and an acceleration vs time graph for this scenario. The suggestion is to put the north-south axis on the vertical and sketch the person's position as a function of time. The question also prompts consideration of the slope during running compared to walking.
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koolkidx45
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A person starts 50m [N] of a reference point then walks until hs is 50m of the reference point. The person then jogs until he is 50m [N] of the ref. point. The person then runs until he is at the ref. point.

How do i sketch a velocity vs time graph and an acceleration vs time graph for this scenario.

Any help is appreciated. Visual images would be nice

Thanks!
 
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  • #2
koolkidx45 said:
A person starts 50m [N] of a reference point then walks until hs is 50m of the reference point. The person then jogs until he is 50m [N] of the ref. point. The person then runs until he is at the ref. point.

How do i sketch a velocity vs time graph and an acceleration vs time graph for this scenario.

Any help is appreciated. Visual images would be nice

Thanks!


Put the north-south axis on the vertical (where the y-axis usually is), and the time axis to the right. Now sketch the person's position as a function of time. For the part where the person is running, will the slope be greater or less than when they are walking?
 

What is sketching kinematic graphs?

Sketching kinematic graphs is a process of representing the motion of an object on a graph, where the position, velocity, and acceleration of the object are plotted against time. This allows for a visual representation of the object's motion over a certain time interval.

What is the purpose of sketching kinematic graphs?

The purpose of sketching kinematic graphs is to better understand the motion of an object by visually representing its position, velocity, and acceleration over time. It can also help in analyzing the behavior and characteristics of the object's motion, such as its speed, direction, and changes in acceleration.

What are the key components of a kinematic graph?

The key components of a kinematic graph are the axes, which represent time and the chosen kinematic variable (position, velocity, or acceleration), and the plotted points or line, which represent the values of the variable at different points in time.

How do you interpret a kinematic graph?

To interpret a kinematic graph, you can look at the shape and slope of the plotted line. A steeper slope indicates a greater value for the variable, while a flatter slope indicates a smaller value. The direction of the slope also indicates the direction of the object's motion. Additionally, the area under the curve can represent the displacement or change in the variable over a certain time interval.

How can kinematic graphs be used in real-life situations?

Kinematic graphs can be used in real-life situations to analyze and understand the motion of objects, such as cars, projectiles, or people. They can also be used in engineering and design to optimize the performance of machines and structures. Additionally, kinematic graphs can be used in sports to track and improve an athlete's performance, and in medicine to analyze the movement and function of the human body.

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