Why kinetic energy is ½ m v2? Why it is different from Einstein’s equation for Energy E= m c2?
sush said:Why kinetic energy is ½ m v2?
There are a few key differences between these two equations. First, E=mc^2 is known as the mass-energy equivalence equation, while E=1/2 mv^2 is the kinetic energy equation. This means that E=mc^2 relates to the relationship between mass and energy, while E=1/2 mv^2 relates to the relationship between an object's mass, velocity, and kinetic energy.
The "c" in E=mc^2 represents the speed of light, which is approximately 3 x 10^8 meters per second. This is a constant value that is crucial in understanding the relationship between mass and energy.
E=mc^2 is considered one of the most famous equations in science because of its revolutionary implications. It showed that mass and energy are interchangeable and that even a tiny amount of mass could produce a vast amount of energy. This discovery led to advancements in nuclear energy and our understanding of the universe.
No, E=1/2 mv^2 only calculates the kinetic energy of an object. To calculate the total energy of an object, you would need to also consider its potential energy, which is determined by its position and is not included in this equation.
Einstein's Theory of Relativity goes beyond the relationship between mass and energy and explains how the laws of physics are the same for all observers in uniform motion. E=1/2 mv^2 is a simpler equation that only applies to objects in motion and does not take into account the effects of relativity.