What's the secret of speed time chart in physics? Which questions must be drawn?

This is just a picture drawn by a physics enthusiast to illustrate a problem
There's no need to study and learn how to draw
This graph allows you to see the displacement expressed directly when solving a specific problem
In fact, it is to simplify physical quantities into mathematical figures
Don't solve the problem just for drawing. Let it go and solve the problem directly

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1. What's the difference between acceleration time diagram and velocity time diagram
2. Concept 1. Distance and time -- meaning 2. The physical quantity representing the motion of an object is numerically equal to that of the object passing through in-
3. According to this definition, if the velocity of an object increases from V1 to V2 in t time, the acceleration is V2 − v1t. An existing small ball starts to move at an acceleration of 3m / S2 for 2S, then the velocity of the small ball at the end of 2S is () A. 0B. 2m/sC. 3m/sD. 6m/s
4. The magnitude of velocity (velocity) is equal to the displacement value of an object in unit time, but it is also defined that the length of an object's trajectory is related to the time it takes So, what is the rate
5. What is the meaning of period in physics? Why is 1 divided by frequency equal to period
6. What is the physical meaning of speed
7. The physical meaning of "velocity"?
8. What is the effect of velocity in physics When a physical object moves in a straight line at a speed of 0.1m/s under the action of tensile force, the friction force is 10N. If the object still moves in a straight line at a speed of 0.5m/s, what is the horizontal tensile force? How much is the friction force? Why? (excluding air resistance) Like this problem, the friction force and the pull force should be the same, both are 10N, but the speed is not determined by the pull force. The friction force has nothing to do with the speed, but the friction force is equal to the pull force, so what determines the speed
9. What is the definition of physical velocity
10. Give me some physics questions and answers (about distance, speed and time) For example, it takes someone 80 seconds to walk 100 meters, From the formula v = s / T =100m/80s =1.25m/s
11. Picture a is the distance time image of a uniform linear motion. Please draw the speed time image of the object in picture B
12. The distance time image of an object moving in a straight line at a uniform speed is shown in Fig. (1). According to (1), the speed time image of the object moving in (2) is drawn Guidance and Practice
13. How to draw the distance time image according to the speed time image Let's not pass on the picture. Let's describe it orally: given that the speed time image is a line segment parallel to the time axis, how to draw the distance time image?
14. The method to calculate the instantaneous velocity of each counting point is (△ X1 + △ x2) / 2 △ T. how to calculate the instantaneous velocity of the first point and the last point
15. How to draw physical circuit diagram speed!
16. What's the meaning of the velocity image? There seem to be five
17. What's the difference between average velocity and average velocity in physics
18. What's the difference between velocity and velocity in physics?
19. What's the difference between velocity and velocity in physics?
20. The average speed is the distance divided by time. Then an object accelerates in the first second, stops in the second second, decelerates and accelerates in the third second within 10 seconds. The result is that the distance is 100 m, the displacement is 10 m, but the time is 10 s, so the average speed is 10 m / S? The average speed is 1 m / S? No matter what the distance is, our average speed and speed, It's just emphasized that if he uses uniform speed, it's just the speed. I've figured it out,