A moving object will stay moving until a force is applied to that object in the opposing direction. To stay moving is an objects natural state. Here on earth, we have many forces that can act on an object to eventually bring it to a halt (relative to the ground). Air friction (wind resistance), rolling resistance, good old fashion friction, and by a force placed on it by other matter (as in the force applied by the ground to a rain drop as it finally hits the ground). So really the question is, what keeps an object stationary. At the moment I'm moving really fast in relation to the sun, but not moving in relation to the ground I'm sitting on. Congratulations, you now understand the "theory of relativity".
sliding
The centripetal force which always acts perpendicular to the motion of the object
It doesn't. It keeps objects from moving.
momentum Further answer Momentum is the reason something keeps moving, it's not really what it's called. Motion or perpetual motion is more like the answer to the question.
i would say sliding
An object which is moving doesn't need a force to keep it moving.
Momentum .
Momentum.
The Centripetal force keeps a object moving in a circle and its force and acceleration are directed toward the center of the circle
sliding
The centripetal force which always acts perpendicular to the motion of the object
A moving object keeps moving, unless you force it to stop. It keeps moving in a straight line, unless you force it to change direction. It keeps moving at a constant speed, unless you force it to speed up or slow down. A stationary object remains stationary, unless you force it to start moving.
It doesn't. It keeps objects from moving.
yes
momentum Further answer Momentum is the reason something keeps moving, it's not really what it's called. Motion or perpetual motion is more like the answer to the question.
Static friction. The frictional force is greater then the force applied, meaning the object can't move.
centripetal