Sujet : Re: Newton e Hooke
De : fortunati.luigi (at) *nospam* gmail.com (Luigi Fortunati)
Groupes : sci.physics.researchDate : 16. Feb 2025, 11:42:31
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vos7hr$gpqq$1@dont-email.me>
References : 1 2 3 4
In my animation
https://www.geogebra.org/m/mrjtyuwk there is the force
F of the hand that presses against the car and accelerates it according
to Newton's second law (F=ma).
And, according to Newton's third law, there is also the blue reaction
force of the car against the hand.
One force acts on the car and the other acts on the hand: they are two
separate forces that act on different bodies.
However, if we want to be rigorous, the black force F of the hand acts
only on point A" of the car and the blue reaction force of the car acts
only on point A' of the hand.
And then I ask myself (and I ask you): At point A" *of the car* does
only one force arrive (the black force F of the hand) or does the blue
reaction force of the car also arrive?
And at point A' *of the hand* does only one force arrive (the blue
reaction force of the car) or does the black force F of the hand also
arrive?
Luigi Fortunati