E=mc^2 is just a formula to calculate how much potential energy there is in an object.
The second squared is not about dimensions.
299,792,458m isn't a dimension , what school did you go ?
The term "squared" is often used in mathematics to represent a particular operation that multiplies a number by itself. What exactly does squared mean in math? Squared is a mathematical term that refers to the number 2 being multiplied by itself. In other words, it means "two raised to the power of two."
299,792,458m ^2
So you are telling me E=meters/per second ?
I must have zero energy today because I am stationary .
See my friend m1 and m2 has energy even if they don't collide . The potential energy released from a collision is the product of itself . A collision doesn't make new energy , only space can create new energy .
In a collision kilograms of force is applied , F=m1*a
mass can't travel at c so mc^2 fails physics and mathematical logic.
Let us take a set of scales and place a 1kg object on the scales . The scales will measure 2kg because the 1kg object and the earth is both applying a force acting on each other .
Now let us raise this object 9.81m off the ground and then drop it . It falls at 9.81m/s2 which means it will take one second to hit the scales .
Let us input the equation F=ma2
F=2kg*9.81m/s2 =19.62kg of force (I did this wrong , considered a constant speed instead of the acceleration .)
Try dropping this on a set of scales and this what it should measure if the acceleration is correct .
P.s c is an acceleration but can't be used for mass .
Einstein was trying to say that when a photon hits matter , the photon is divided by the area , hence mc^x,y
Drop a ball of plasticine from a height and you can see this when it lands . Shine a projector at a wall , E=mc^x,y
9.81m/s2 hmmm, seems like a second from 1m height , is that correct? Maybe it should be a 1m/s2 ? I can count 1.s why something falls from a meter and about 1.5 seconds from 2 meters .