- #1
Mo
- 81
- 0
Hello all, need a little bit of help understanding Newton's third Law.
It states that:
" While body A exerts a force on body B, body B exerts an equal and opposite force on body A"
Okay, i can understand that.I also understand that the force are acting upon different bodies.
so (and here's the question..) if i push my desklamp across the .. desk.. then i am exerting a force in one direction on the lamp, and it is exerting an equal and opposite force on my hand.
If so, why can i still get the desklamp to move. In my textbook it tells me that the forces do not cancel each other out, because they act on different bodies, but .. still ... i obviously don't understand it all that well.
Okay the next question from the book was
Explain why forces occur only in pairs"
Is it simply enough to say: Whenever one body exerts a force on a second body, the second body always eerts a force on the first body, hence forces occur only in pairs.
Help + Advice please!
Regards,
Mo
It states that:
" While body A exerts a force on body B, body B exerts an equal and opposite force on body A"
Okay, i can understand that.I also understand that the force are acting upon different bodies.
so (and here's the question..) if i push my desklamp across the .. desk.. then i am exerting a force in one direction on the lamp, and it is exerting an equal and opposite force on my hand.
If so, why can i still get the desklamp to move. In my textbook it tells me that the forces do not cancel each other out, because they act on different bodies, but .. still ... i obviously don't understand it all that well.
Okay the next question from the book was
Explain why forces occur only in pairs"
Is it simply enough to say: Whenever one body exerts a force on a second body, the second body always eerts a force on the first body, hence forces occur only in pairs.
Help + Advice please!
Regards,
Mo