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is a push or pull
The combination of all the forces acting on an object
Two or more forces exerting on an object
If the net force is not zero, the forces are
Newton's first law of motion
how an object moves when the net force acting on it is zero.
the force that brings nearly everything to a stop
Newton's second law of motion
the acceleration of an object equals the net force divided by the mass and is In the direction of the net force
the size of the gravitational force exerted on an object.
center of mass
the point in an object that moves as if all the objects mass were concentrated at that point.
Newtons third law of motion
forces always act in equal bur opposite pairs.