Which one of these formulas are used to find T (time)?

Below

Explanation:

You can actually use ALL EXCEPT THE LAST ONE of these equations to find t, time! It really just depends on what values you are given in the question! Basically what you want to do is plug in everything you have, and solve for t! For example :

Let's say that a car begins from rest and accelerates at 4.2 m/s^2 [ forward ] until it reaches a speed of 62 m/s.

     vi = 0m/s, vf = 62 m/s, a = 4.2 m/s^2

We can use the 3rd equation to solve :

     vf = vi + at

     62 = 0 + 4.2(t)

     62 = 4.2t

     14.76 = t

     15 seconds = t

Hope this helps!

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!

come closer and become far apart and become steam/gas