Question

Explanation on Gravitational field due to point mass.

Answer 1

this force Is which has More power than every force it has attracting capacity.

Answer 2

Visualizing Gravity: the Gravitational Field


Introduction

Let’s begin with the definition of gravitational field:

The gravitational field at any point P in space is defined as the gravitational force felt by a tiny unit mass placed at P.

So, to visualize the gravitational field, in this room or on a bigger scale such as the whole Solar System, imagine drawing a vector representing the gravitational force on a one kilogram mass at many different points in space, and seeing how the pattern of these vectors varies from one place to another (in the room, of course, they won’t vary much!).  We say “a tiny unit mass” because we don’t want the gravitational field from the test mass itself to disturb the system.  This is clearly not a problem for a one kilogram mass in discussing planetary and solar gravity.

To build an intuition of what various gravitational fields look like, we’ll examine a sequence of progressively more interesting systems, beginning with a simple point mass and working up to a hollow spherical shell, this last being what we need to understand the Earth’s own gravitational field, both outside and inside the Earth.

I hope that this will be excellent and helpful for you.
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