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Sagot :
Newton's first law states that an object in motion will continue to remain in motion until and unless another external forces acts upon the object.
This means that if an object is placed on a table, it will remain at rest unless a force is applied to it to set it in motion. Similarly, if an object is already in motion, it will continue moving in a straight line at a constant speed unless acted upon by a force to change its velocity.
To move a chair across the floor, you must apply a force to it that is greater than the force of friction that is acting on the chair to resist its motion. Friction is the force that opposes the motion of an object as it moves across a surface. It is caused by the roughness of the surface and the nature of the materials in contact with each other. To move the chair, you must apply a force that is strong enough to overcome the force of friction and set the chair in motion.
Newton's third law states that for every action, there is an equal and opposite reaction. This means that when you apply a force to an object, such as pushing the chair across the floor, the object will exert an equal and opposite force back on you. This is why you feel a force pushing back against your hand as you push the chair. The strength of this opposing force will depend on the mass of the object and the strength of the applied force.
Learn more about friction at:
brainly.com/question/24386803
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