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I think there has to be a net force applied to the object in order for it to move. An example would be a box sitting on the ground. There is always gravity acting on the box, pushing it down, but there is also a force called the Normal force, applied by the ground on the box pointing up against gravity. These 2 forces, gravity and normal, cancel each other out perfectly, therefore the box does not move either up or down, it is stationary. Now if a person goes up to one side of the box, and pushes it horizontally, the box may begin to move if the force applied is greater than the friction between the box and the ground (i forget the name of the specific friction involved). As the box moves, there is also a constant friction between the box and the ground that pushes back against the direction of motion of the box. This friction would cause the box to stop moving once the person stops pushing, preventing the box from sliding on forever.
( i know some parts are vague in this, and im open to criticisms and corrections :P )
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoEvery object has potential and kinetic energy. A force has to be applied to it though. (i.e. gravity or someone or something exerting a physical force to it, or it produces the thrust needed to push itself forward internally, etc...)
Wiki User
∙ 13y agoby different organizations in the ecosystem matter is able to proceed threw living things such as plants , animals . and other living compounds
Wiki User
∙ 14y agoforce must act on it
Wiki User
∙ 11y agoheat must be added or removed
Wiki User
∙ 12y agoa force must be applied
Wiki User
∙ 7y agoKinetic energy must occur.
Wiki User
∙ 12y agodg
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