Relier Pairs - newton's laws of motionVersion en ligne - newton's laws of motion par Lindsay Saravia 1 Force equals mass times acceleration. 2 The principle of inertia. 3 Law of action and reaction. This is the fundamental formula of dynamics, and it comes from assuming a body at rest on a horizontal surface, which is subject to a force parallel to that surface, being able to dispense with friction: we will see that the body starts moving at a constant acceleration. It indicates that when a body is at rest, or describes a movement with the characteristics of MRU, the forces applied to it have a null result. Whenever one body exerts a force on another, this second exerts an opposite of equal intensity and direction but opposite sense on the first.
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