Acceleration Problem!! Solve, speed !!

In a linear motion with uniform velocity, the difference between the displacements passed by two successive equal times is equal to at 2, and the time of the known object passing AB is equal to the time of the BC segment.

l2-l1=at^2 a=（l2-l1）/t^2 ……1) Let the velocity of point A be va, and the velocity of point C be vc, vc=va+2at......(2) The average velocity is equal to (L1+L2) 2t, and in the linear motion with uniform velocity, the average velocity of A---C is equal to (VA+VC) 2......（3）

From (1)(2)(3), vc=(3l2-l1) 2tva=(3l1-l2) 2t

Let the velocity at a, b, and c be va, vb, vc, and the acceleration a. It can be obtained from kinematic formulas.

va*t+1/2*a*t^2=l1

va*(2t)+1 2*a*(2t) 2=l2+l1. a=（l1-l2）/（t^2）

va=（3l1-l2）/2t

vc=vc=va+2at=（3l2-l1）/2t

Draw a velocity-time image.

The initial velocity is unknowable and arbitrary.

But the velocity at point C is the average velocity v=(l1+l2) (2t) on the entire ac

Let the initial velocity be v. Finally, you can make an appointment.

1.The world's ultra-high-speed mask machine: fully automated production line, 1000 masks in 1 minute, with a daily production capacity of more than 1.2 million pieces.

2.It takes 360 hours to build a 30-storey building that is resistant to level 9 and can withstand level 9. 3.

Huoshenshan Hospital: The whole process is live, and the delivery is completed in 10 days.

The first two fill in two, the latter one is catty, **half catty and eight taels.

6 pens plus 10 pens equals 1 box of pens.

Solution: AGF = age + egf = 90 + egf = 90 + EAF

agd=180- ∠dag- ∠adg

180-( dab+ bag)-(adc- cdf)180- dab- bag- adc+ cdf, because adc= abc; CDF = after CAF substitution.

180- dab- bag- abc+ caf is simplified because bag+ abc=90.

90- ∠dab+ ∠caf

agf+ ∠agd=90+ ∠eaf+90- ∠dab+ ∠caf90+90+ ∠eaf+ ∠caf- ∠dab180+ ∠cae- ∠dab

Known cae= dab

Yesterday is gone, and today is fleeting, all of which are worth grasping. For tomorrow, all we can do is try to be the best we can be today. Anything worth doing must be done well.

The same word is always written on the clock of time - "now". So, we have to cherish every minute that will pass from now on. Why do we read?

Is it just reading for the sake of parents' expectations? Apparently not. Although, some people have nothing to do, and while gradually becoming discouraged, they fantasize about their future.

So, complaining again and again =, my mind went blank, and I felt that I was too lazy to do anything. Maybe his parents can pave bridges and roads for him, and the future is bright. And we, more importantly, have fought our own.

We prefer this way of life: we don't like to be arranged by someone else in the future. I always tell myself:

Don't be lazy, rely on your own efforts, even if you fail, never give up, never give up. There is still a long dark night road until tomorrow, although I can't see my future path clearly, maybe I will hit a wall, maybe I will lose my way......But my firm belief has told me that as long as there is a fire of hope burning in my heart, how can I not perceive the path I want to take, and if there is a fire of hope burning in my heart, why not be afraid of the difficult future!

A new day will begin again, and I will be in charge of my future!

The future, a word that sounds so far away, the future is done by the future me, but what the future will do is decided by the future me, I am in charge, I am in charge of my own destiny, and at the same time I control my own future. "My future is not a dream, my heart is moving with hope. "The future is not far away!

I used to be so lonely, I used to be so confused, lying alone on the grass under the starry sky, the stars in the sky were like jewels of rumors, densely covered in the dark night, I couldn't count how many. The world is like this starry night sky, which is dazzling but also dazzling. In a world that seems so rich, everyone will be faced with too many choices.

When I was a child, I never thought about how to go in the future, never worried about what my future would face, I didn't understand anything, but I grew up bit by bit in the catalyst of time, I began to face all kinds of problems, began to face this unprecedented pressure, began to wander the cross streets again and again, I thought, for me as a child, the current self is the future, and for the present, what will the future be?

Perhaps, my future will sink into darkness; Perhaps, my future will be inclined to brightness. I can't predict tomorrow, but I can decide my tomorrow by what I do today.

Today's self can use hard work and sweat to narrate a beautiful future that belongs to the future; Today's self can use hard work to compose a melodious movement that belongs to the future; Today's self can use diligence to depict a picture of birds and flowers that belong to the future; Today's self can use hard work to write a chapter that belongs to the future to lay a good plan.

My future, my way! The future is good or bad, and the future beauty and ugliness are all under my control. The future is a mystery that you can't fathom, but the answer to this mystery is up to you, and of course the mystery will be revealed by myself!