Respuesta :
"When an object A exerts a force (called action) on an object B, then object B exerts an equal and opposite force (called reaction) on object A"
Explanation:
Newton's third law of motion states that:
"When an object A exerts a force (called action) on an object B, then object B exerts an equal and opposite force (called reaction) on object A"
it is important to note that the pair of forces (action and reaction) do not act on the same object, but on different objects: therefore, they never appear in the same free-body diagram of an object.
There are several examples where Newton's third law is applied in daily life. For instance:
- A book at rest on the table: the book exerts a downward force on the table, and the table exerts an upward force (normal reaction) on the book
- If you push against the wall, you exert a force (action) on the wall, and the wall exerts a force (reaction) back on you, of equal magnitude
- A satellite in orbit around the Earth: the gravitational force exerted by the Earth on the satellite is equal to the gravitational force exerted by the satellite on the Earth
Learn more about Newton's third law:
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