Question

Two gravitational forces act on a particle, in perpendicular directions. to find the net force, can we add the magnitudes of those two forces? no yes

Answer 1

No, we can not add the magnitudes of those two forces.

What is Gravitational Force?

An attractive force between masses is a gravitational force. According to Isaac Newton's second law, F = ma, a gravitational force generates an acceleration just like all other forces do. Remember that according to Newton's second law, a body will accelerate if there is a net force acting on it in an inertial frame of reference (a coordinate system travelling at a constant speed). According to Newton's Universal Law of Gravitation, when two bodies, such as the Earth and the Sun, are in close proximity to one another, an attractive force naturally attracts them. This attraction results in an acceleration of the two objects. 

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