E=mc2

Energy – mass equation is given by Sir Albert Einstein. It states that energy can convert into mass and mass can convert in energy.

In this equation: -

E = energy

m = mass, Unit of mass is kilogram (kg)

c= speed of light (3x10^9 m/s)

Every thing is right, than what’s the problem with it?

The problem is what is the work of c2 is this equation.

If you ask to anyone about c2 than their answer will it’s a constant.

As a “Science Lover” I will tell you about it.

How can I tell you about the equation!

Ah……

Let’s take an example of kinetic energy

Formula of kinetic energy is:

K=1/2 mv^2

In this equation

m = mass

v = velocity, unit of velocity is m/s.

Let’s relate with E=mc2

K=  1/2 mv^2                                                       E=mc2

As we know unit of mass is kg.                        As we know unit of mass is kg.

Unit of velocity is m/s.                                   therefore,

m= kg, and v=m/s                                           E= kgm2/s2.

K=  kgm/s

Because of power2

The because will be,

K=  kgm2/s2.

Wait a minute, what it this!

It is exactly same as E=mc2.

Now, you can call it a co-incident.

So, as you know I am a Science Lover.

I’ll give you another example as the equation of potential energy

The equation is,

P=mgh

Where,

m= mass

g= acceleration due to gravity & its unit is m/s2.

h= hight (unit of hight is metre (m)).

Let’s solve the equqtion

P=kgm/s2 x m

ð P=kgm2/s2

It is also same as E= kgm2/s2

That is E=mc2

 

Now you can understand why Einstein uncle put ‘c’ in their formula. It is not a constant. It is relative to all formula of all types of energy.

  

 


 

                               

 

 

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