If we put two equal point masses with a mass of 1 kilogram 100 light years apart, will they eventually collide?
32.
When the point mass is temporarily stationary, \ ddot { r } is the acceleration of gravity,-MG / r ^ 2.
33.
Geometrically, a discrete measure ( on the real line, with respect to Lebesgue measure ) is a collection of point masses.
34.
In this approach, the body is modeled as a set of point masses ( nodes ) connected by ideal weightless ODEs.
35.
The " weakest " equivalence principle is restricted to the motion law of a probe point mass in a uniform gravitational field.
36.
However, in Newton s day, the explanation that every two point masses might attract each other was also a very unobvious observation.
37.
From the surface of the earth, does a point mass look the same gravitationally as the same mass distributed through the earth's volume?
38.
The Modified Point Mass model will be used for spin-stabilized projectiles and the Five Degrees of Freedom model will be used for fin-stabilized rockets.
39.
"Every point mass attracts every single other point mass by a force pointing along the square of the distance between the point masses ".
40.
Proposition 2 provides a geometrical test for whether the net force acting on a point mass ( a particle ) is a central force.
