What is the period of growth and development in a cell's life cycle?

PLEASE HELPP MEEE. I NEED AN ACTUAL EFFORT ANSWER NOT THAT YOU GUYS CAME HERE JUST TO COME FOR POINTS AND GOOGLE IT! SO< THIS IS WHY I NEED AN ACTUAL EFFORT RESPONSE EFFORT BECAUSE ID DON'T UNDERSTAND!

Thank you for your kind help :)

Interphase

Explanation:

Interphase is the period of growth and development in a cell's life cycle.  The cell spends the majority of the life cycle in this period.  The cell also makes copies of itself and prepares mitosis.  

You could kind of relate this to a human's childhood (This analogy is not at all accurate on a scientific basis.  I am just using this example to help you understand the concept.)  During childhood, you grow and develop skills that you will use as an adult.  Once you reach adulthood, you start applying the things you had and practiced from childhood in your adult life.  In the same way, interphase is a growing period for cells.  Once the mature, they do what they had developed themselves to do, which is to make copies of themselves.

I am not sure if this made sense.. Let me know if you need me to be a little more clearer!

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied