When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.

When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body. ( whale.to )

submitted 2018-10-17T18:59 by New_goat

7 comments

JPG Open

ardvarcus 2018-10-18T00:42

A rocket doesn't need to "push against" anything -- that's why they use them in space, where there is nothing to push against.

link

Frankenblock 2018-10-17T23:38

Fire extinguishers

Didn't you see wall-e

link

Thetiedyeguy 2018-10-17T22:07

This is somthing you can test at home though, you can buy a vacume bell and have a tiny hot wheels cart with a tiny remote activated valve and a wee little co2 canister or some shit. See if that little vehicle get propelled by expanding gas or if the moon landing was just a meme.

link

clapper900 2018-10-17T19:29

Maybe you're onto something, retard.

link

Mike_Foster 2018-10-17T19:26

Where does a balloon it its lift from? What is being displaced?

link

ideologicidal 2018-10-17T19:18

The rapid expansion of gas (one body) from the combustion of fuel pushes against the bell of the thruster (second body), forcing the two bodies apart.

link

thelma 2018-10-17T19:03

So your argument is that since space is void of matter, expelling gas from the rear of the vehicle would not result in forward movement ?

link