Is it possible to get down by throwing hands upwards?

[jackwhirl]

I'm sorry I sound a bit silly.. But u see, to move your body in space, u will have to exert force or do an action, right? Isn't throwing arms upwards considered as an action? Do correct me.

Of course that is an action. The issue you'll run into, if you want to actually travel some distance in space, is that your arms are typically attached to you. If you throw your arms up, that is an action causing an equal and opposite reaction in the rest of your body. But, then your arms reach maximum extension and the force of tension in your arms brings them to a stop, along with the rest of your body which was, briefly, traveling in the opposite direction. Stretching out could let you reach something you couldn't before, but it won't let you go anywhere.

 

[Titania]

Of course that is an action. The issue you'll run into, if you want to actually travel some distance in space, is that your arms are typically attached to you. If you throw your arms up, that is an action causing an equal and opposite reaction in the rest of your body. But, then your arms reach maximum extension and the force of tension in your arms brings them to a stop, along with the rest of your body which was, briefly, traveling in the opposite direction. Stretching out could let you reach something you couldn't before, but it won't let you go anywhere.

Okay~ Thanks :)

 

[phinds]

I'm sorry I sound a bit silly.. But u see, to move your body in space, u will have to exert force or do an action, right? Isn't throwing arms upwards considered as an action? Do correct me.

Yes, this is correct (I'm assuming you mean "rotate", not move your center of mass). See post #5. This is what everyone in the thread, except stevmg, have said throughout.