Combined gravitational field strength is a measure of the gravitational force exerted by multiple masses on an object at a specific point in space. It takes into account the masses and distances of all objects in the system.
Combined gravitational field strength is calculated by summing up the individual gravitational fields of each mass in the system. This can be represented by the equation F = G(m1m2)/r^2, where G is the universal gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between them.
The main factors that affect combined gravitational field strength are the masses and distances of the objects in the system. The larger the masses and the closer the distances, the stronger the combined gravitational field strength will be.
The direction of combined gravitational field strength determines the path and acceleration of objects in the system. Objects will be pulled towards the direction of the strongest gravitational field, which is typically towards the larger and more massive objects.
No, combined gravitational field strength cannot be negative. This is because gravity is always an attractive force and is represented as a positive value in calculations. However, the direction of the combined gravitational field strength can be negative if it is pulling an object in the opposite direction of its motion.