Answer:
The force of Gravity is what holds you down to earth.
The length of on a vector is indicated by the length of its arrow.
A measure of the force of gravity on an object is called weight.
Einstein explained gravity as a distortion in space.
If you had the mass of 600 kg on the earth; you would have the mass of 226.8 kg on the tiny Mercury.
I hope this helps you! :)