From the formula of uniform linear motion v = s / T, it can be seen that the velocity is equal to the ratio of displacement to time, which has nothing to do with velocity and displacement. Why is it wrong
For example, if r = u / I, the resistance made in other people's field is no matter how much voltage you add. It's just a way to calculate the resistance,
RELATED INFORMATIONS
- 1. Velocity displacement formula
- 2. According to the velocity formula v = s / T, what is correct in the following statement? A. The speed of an object is proportional to its distance B. The speed of an object is inversely proportional to time C. The speed of an object is directly proportional to its distance and inversely proportional to its time D. The speed of the object is constant and has nothing to do with the distance time reason
- 3. How to find the surface area and volume of a cube or cuboid
- 4. Calculation formula of volume, surface area and side area of cone
- 5. Calculation of the surface area of a round table
- 6. The derivative of spherical volume formula is spherical surface area. What is the meaning of derivative of spherical surface area formula? For example, the derivative of 2 π R is 2 π, which is the circumference angle, but what is the meaning of the derivative of 8 π r of 4 π R2?
- 7. It is known that the volume of a sphere with radius R is v = 4 / 3 π R ^ 3. By using the definition of derivative, it is proved that the surface area of the sphere is s = 4 π R ^ 2
- 8. Formula of surface area of sphere It's better to indicate the meaning of each letter!
- 9. The earth's surface area is about 510 million square meters, of which 70.8% is ocean area and 29.2% is land area What's the sea area? What's the land area?
- 10. The surface area of the earth is more than () kilometers? The surface area of the earth is more than () billion square kilometers? The land of human life accounts for about () of the surface area?
- 11. If the average speed of an object moving in a variable speed straight line is 6m / s in the first half of the distance and 10m / s in the second half of the distance, the average speed in the whole distance is () A. 7.04m/sB. 7.50m/sC. 8m/sD. 8.24m/s
- 12. The average speed is a rough description of how fast an object moving at variable speeds moves at -- or
- 13. All the formulas of physical acceleration are those for time and velocity
- 14. In English
- 15. Speed is a physical quantity that describes the speed and direction of an object, Why do some exercises only write "describe how fast an object moves" without mentioning direction
- 16. If the time and distance of two objects are not the same, what is used to express the speed of motion in physics
- 17. In physics, the ratio of the distance an object passes through to the time it takes is called the ratio of the motion of an object_____ It means how fast an object moves in the process
- 18. What do the English letters K, l, h and N on the architectural drawings mean?
- 19. In high school physics, the average speed is the displacement divided by time. Then, there are several time periods in the whole process where the displacement is different from the time used. At this time, what is the average speed of the whole process,
- 20. What is the difference between instantaneous velocity and average velocity