How to transform.translate array of GameObjects at the same time and speed?

I can't do a loop in update() function because it won't looks like I want. Here is the video:

And here is the code:

Code (CSharp):

1. {
2.      public GameObject[] Skiny = new GameObject[15];
3.      public float PozycjaPoczatkowa = -1.1f;
4.      public GameObject[] WylosowaneSkiny = new GameObject[40];
5.      void Start ()
6.      {
7.          UstawPozycjePoczatkowe ();
8.          for(int i = 0; i < Skiny.Length; i++)
9.          {
10.              Destroy(Skiny[i].gameObject);
11.          }
12. //IT DOESN'T WORK!!!
13.          for (int i = 0; i < 39; i++) {
14.              WylosowaneSkiny [i].transform.Translate (Vector2.right * Time.deltaTime * -i, Space.Self);
15.          }
16.      }
17.      void Update ()
18.      {
19.      }
20.      void UstawPozycjePoczatkowe()
21.      {
22.          int licznik = 0;
23.          do {
24.              Vector2 pozycja = new Vector2 (PozycjaPoczatkowa, 0);
25.              WylosowaneSkiny[licznik] = Instantiate(Skiny[Random.Range(0,Skiny.Length)], pozycja , Quaternion.identity) as GameObject;
26.              PozycjaPoczatkowa += 1.1f;
27.              licznik++;
28.          } while(licznik <=39);
29.      }
30. }

 

Have you tried parenting your objects to a single game object and then moving the parent object instead?

 

I found solution after long searching in google.

Code (CSharp):

1.     void przesun(GameObject[] objects)
2.     {
3.         foreach(var obj in objects)
4.         {
5.             obj.transform.Translate(Vector2.right * Time.deltaTime * predkosc *-1, Space.Self);
6.         }
7.     }

Code (CSharp):

1.     void Update ()
2.     {
3.         przesun(WylosowaneSkiny);
4.     }

But I don't know what foreach means. However It's working!
Now I want to set the speed to slow down and fully stop. How can I do that?

 

This save me a lot of Time.Thanks a lot