What is point mass ?

What is the point mass? Give the examples.

What is meant by point mass and give suitable example ?

Four point masses each mass m kept at the vertices of a square. A point mass m is kept at the point of intersection of the diagonal of a square. What be the force experienced by central mass m ?

Four point masses each mass m kept at the vertices of a square. A point mass m is kept at the point of intersection of the diagonal of a square. What be the force experienced by central mass m ?

The gravitational potential at a point due to a point mass is V=

Gravitational force between two point masses m and M separated by a distance r is F . Now if a point mass 3m is placed next to m , what will be that a. force on M due to m , b total on M ?

Forces F_(1) and F_(2) act on a point mass in two mutually perpendicular directions. The resultant force on the point mass will be

Forces F_(1) and F_(2) act on a point mass in two mutually perpendicular directions. The resultant force on the point mass will be

Forces F_(1) and F_(2) act on a point mass in two mutually perpendicular directions. The resultant force on the point mass will be