As shown in the figure is the law of the displacement of a particle moving with time, the image is a parabola, and the equation is x = - 5T2 + 40t A. The maximum displacement of the particle is 80 & nbsp; MB. The initial velocity of the particle is 20 & nbsp; m / sc. when the acceleration of the particle is 5m / S2D. T = 4S, the velocity of the particle is zero | Math enthusiast | Mathematical art

As shown in the figure is the law of the displacement of a particle moving with time, the image is a parabola, and the equation is x = - 5T2 + 40t A. The maximum displacement of the particle is 80 & nbsp; MB. The initial velocity of the particle is 20 & nbsp; m / sc. when the acceleration of the particle is 5m / S2D. T = 4S, the velocity of the particle is zero

Any point on the image represents the position coordinates at that time. Above the time axis, the position coordinates are positive, below the time axis, the position coordinates are negative. That is to say, the coordinates in the image are either positive or negative, and all the points are on the same straight line, so the displacement time image only describes the linear motion

RELATED INFORMATIONS

1. If a (1,2) is outside the parabola y ^ 2 = 2x, P moves on the parabola Find the maximum value of | PA | - | Pb |
2. Why is the trajectory of an object a parabola? Who first discovered the parabola?
3. XT image Are all lines represented in XT images? What does a curve represent?
4. On the physical aspect of XT graph In XT graph, when the line in the graph starts from zero, it moves up first. When it reaches a point, it moves down again. When v reaches zero, it continues to fall below zero. When it goes up, it's a positive speed. I don't know if the zero point is turning around from time to time when I go down. If it's below zero point, it's back to the starting point and moving in another direction Compulsory one in senior one
5. What does physical image intersection mean
6. (consult physics expert) when the force of an object meets what conditions, the trajectory is a parabola (part of)?
7. Is the trajectory of projectile a parabola? It's not a flat throw
8. It is proved that the trajectory of an object in horizontal motion is a parabola
9. How to judge whether an object's trajectory is a straight line or a parabola?
10. As shown in the figure, there is an object with a mass of M = 2kg at o on a smooth horizontal plane. The object is subjected to two horizontal forces, F1 = 4N, F2 = (2 + 2x) n, and X is the displacement of the object relative to O. the object starts to move from rest. Question: (1) when the displacement is x = 0.5m, what is the acceleration of the object? (2) Where is the maximum acceleration of the object? What is the maximum value? (3) Where is the object's maximum velocity? What is the maximum value?
11. Why is the X-ray image of physics uniform acceleration in grade one of senior high school a parabola?
12. A physical phenomenon, there are also calculation methods When we turn on the tap, we will find that the diameter of the continuous flow column is shrinking. Why? Is there any calculation method? What is the relationship between the height, the diameter before falling and the diameter at the lowest? How to calculate?
13. Formula for calculating buoyancy by balance method
14. How can I do the physical calculation? I can't set the formula. What should I do I have been studying physics for nearly two years, and I don't know how to do it
15. There are several ways to calculate buoyancy in physics
16. What are the methods to calculate buoyancy
17. At 330k, the volume of 4mol oxygen is 0.1M, which is expanded by (1) isobaric expansion (2) isothermal expansion (3) adiabatic expansion. Finally, the volume becomes 0.5m. The process curves of these three processes are drawn on the same P-V diagram
18. What are the nine conventional logging curves Petroleum Engineering, related. What are the nine conventional logging curves?
19. In the following curves, the law of human digestive enzyme action can be correctly expressed () A. I and III B. II and III C. I and IV D. II and IV
20. When the law of diminishing marginal returns takes effect, the total cost curve begins to change A. To decline at an increasing rate; B. to rise at an increasing rate; C. To decline at a decreasing rate; D. to rise at a decreasing rate Hello, I'd like to ask why we don't choose B. I think that when the law of diminishing marginal return comes into effect, that is, the law of increasing marginal cost comes into effect. At this time, the cost increases gradually, so the total cost rises at an increasing rate,