1
the force, acting upon a body moving along a curved path, that is directed toward the center of curvature of the path and constrains the body to the path
2
refers to Einstein's theory that time and space are not absolute.
3
surface resistance to relative motion, as of a body sliding or rolling
4
the force of attraction by which terrestrial bodies tend to fall toward the center of the earth
5
the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force
