The thrust force is a force that occurs when a body is immersed in a fluid
The force is repulsive if the charges are of equal sign
thrust force
kinds of forces
force of attraction
gravity
frictional force
the normal force F_n \, (or N) is defined as the force exerted on a body surface resting on it
repulsion force
The force is attractive if they are of opposite sign
Gravity is one of the four fundamental interactions observed in nature
