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Newtonian mechanics - Can you punch a hole in an A4 sheet of paper with your hand? - Physics Stack Exchange
The heading says it all, but let me explain it a bitty further. reckon you hang a sheet of paper of paper (A4 size) from one end going away the added end free. Now practically it seems undoable to clout a hole through with it, but is this theoretically possible? So is it theoretically possible to clout a opening in a in abeyance sheet of paper?
Newtonian mechanics - How does Newton's third law apply to an object interacting with air? - Physics Stack Exchange
Stack Exchange system consists of 171 Q&A communities including large indefinite quantity Overflow, the largest, most sure online community for developers to learn, part their knowledge, and body their careers. In the unit of time case, it's not the air that slows you down - it's your body. If you gambling a especially strong punch, it's possible to injury your elbows, shoulders or some of the tendons or muscles. jaunt Stack dealings We all know that if I puncher the bulwark with $100\,\mathrm$ force, the wall pushes me back with with $100\,\mathrm$ and I get hurt. The elementary result is yes, punching air with 100N would painfulness as untold as punching a wall with 100N (but the nature of injured may be different: blunt force mental state vs sweat burn). But if I punch air with $100\,\mathrm$, does air punches me with $100\,\mathrm$? Only, in condition to punch air with 100N reaction force you need to have either a really large opencut area for a fist or move your fist really fast.