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What's the difference between velocity and velocity in physics?
Speed has no direction, but only size. It is the ratio of the distance △ s that a moving object passes through and the time △ t that it takes to pass through. Speed has size and direction. It is the ratio of the displacement △ s that a moving object passes through and the time △ t that it takes to pass through. For example, a person ran a 400m circle around the playground and spent 1
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- 1. What's the difference between average velocity and average velocity in physics
- 2. What's the meaning of the velocity image? There seem to be five
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- 4. 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
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- 6. 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
- 7. Picture a is the distance time image of a uniform linear motion. Please draw the speed time image of the object in picture B
- 8. What's the secret of speed time chart in physics? Which questions must be drawn?
- 9. What's the difference between acceleration time diagram and velocity time diagram
- 10. 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-
- 11. What's the difference between velocity and velocity in physics?
- 12. 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,
- 13. What's the difference between speed and speed? Ask for advice. In addition, the variation of velocity rate with time is not uniform, but the variation of velocity with time is uniform. How to understand
- 14. Why is physical velocity the size of velocity If you run around a circle, the displacement is 0, so the speed is 0, but the speed should not be 0
- 15. Average velocity, average velocity, instantaneous velocity, instantaneous velocity, average acceleration, instantaneous acceleration The size of vector is scalar. When similar concepts are used in the above concepts, will there be a logic error?
- 16. Are velocity and average velocity vectors
- 17. Speed is the magnitude of instantaneous speed?
- 18. What is the short name of instantaneous velocity? What is the short name of instantaneous velocity?
- 19. Instantaneous velocity and instantaneous rate In the VT diagram, when the limit is removed, why can the instantaneous displacement and the distance be regarded as equal?
- 20. The relationship and difference among instantaneous rate, average rate and rate