## 2.1.2 Exploring furtherIn this paragraph we will look at what would happen if the force of Equation 2.1 is the gravitational force of the mass of Earth, hence assuming that somehow the stretching of spacetime by the mass of Earth causes a force equal to the force needed to accelerate an object with the mass of Earth on Earth. Hence if:
where M is the mass of Earth, and from Equation 1.0 we know that:
this yields:
This equation tells us that the stiffness of spacetime
depends on the rest mass energy and the radius of the
mass itself. |