Question

Why is the body moving if every action has equal and opposite reaction?I mean don't the forces cancel each other out?

Answer 1

forces dont cancel each other out unless they are indeed equal and in opposite directions.

but since we live in a higher dimensional plane greater than R^1; things tend to get pushed about. in my opinion

Answer 2

Yes but if you push something that something will push you back with the same equal force right?

Answer 3

yes, until the forces involved reach a breaking point of one of the object such that the energy is imparted to it and it moves

Answer 4

But there is equal forces on both.Why would one reach a breaking point and not the other?

Answer 5

these forces are in opposing directions; but are clearly not equal

Answer 6

Every action has an "EQUAL" and opposite reaction

Answer 7

when one force reaches a threshold and can no longer push back; it receives the resulting forces and moves

Answer 8

the reaction, is to move ....

Answer 9

But as long as there is a force there will be an equal opposing force

Answer 10

i think you are mis reading the intent of it

Answer 11

How so?Please explain

Answer 12

ive tried to explain.

Answer 13

Im asking what is the fault in my questioning that

Answer 14

we are either talking about 2 different instances, or one of us is misunderstaing the other

Answer 15

can you provide an example of what it is you are asking?

Answer 16

Now if you take a Jet engine,
It works on the fact that you are pushing force out of the back of the engine, so according to Newtons third law, there is a force pushing fowards.
If this force is equal and opposite of that coming out of the back of the engine, shouldn't you just stay stationary?

Answer 17

these forces are not equal in relation to the plane itself; the plane is being acted upon by these forces and when it reaches its threshold it moves in the direction of the greater force in order to expend it acquired energy in a useful manner

Answer 18

Ok you apply 100 newton on a ball so now the ball applies 100 newton back on you.Why is it that it is only the ball that is moving?

Answer 19

the ball stays still in its frame of reference and you move ....

Answer 20

Both the ball and myself are in the same frame of reference

Answer 21

then you are the ball apparently

Answer 22

Didn't get you

Answer 23

can the ball exert an equal and opposite force without moving? or does it have to expend its aquired energy to accomodate and equalize the reactions?

Answer 24

spose you exert 100N on mount everest, what moves, you are the mountain?

Answer 25

There you get 100 newton on yourself applied on you by the mountain hence the pain you feel.But the mountain doesn't move because F=ma.Here m is too high for 100n force to give any valid accaleration

Answer 26

the reaction doesnt imply no motion is what im getting at. it implies that the resulting movements are determined BY the forces involved

Answer 27

But what Im saying is the reaction must invoke some motion because there is a resultant force on you!

Answer 28

things can have forces acting upon them and exhibit no motion (ideally) when they are in a state of equilibrium.

Answer 29

What Im saying is why are you in equilibrium if the ball is exerting a 100 n force on you?

Answer 30

forces of collision are a different can of worms :)

Answer 31

if you and the ball can exert the same amount of force in the opposite direction; then you are at an impass; if there is movement to be had it is in imparting energy from one object to the other ...

Answer 32

Hey!!!!!!!!I think I got it!the "action" and "reaction" forces in Newton's 3rd law always act on different bodies. Only if two equal and opposite forces act on the same body would they cancel.

Answer 33

yeah after a long discussion which seemed pointless to me ( i read the whole conversation now).. u finally got the point.. the two forces always act on different bodies..

Answer 34

Yeah now that I read it it looks the same to me

Answer 35

wt was that all..?? plane , threshold. imparting energy?? LOL... the answer was so simple n was thought in the most complex way possible.. can't stop laughing..

Answer 36

That's why I was confused.Well anyway I understand now :D

Answer 37

thank god u did..

Answer 38

:)

Answer 39

without a correct vocabulary for physics, i tend to have to try my best and see what happens

Answer 40

@amistre64 buddy i appreciate that you kept trying to help him ... :)