Timeline for How are living things able to exert force on themselves?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 24, 2017 at 2:19 | vote | accept | user78237 | ||
| Dec 23, 2017 at 14:53 | comment | added | Rick | You do, when you move your hands you push the ground with varying forces, think of what would happen if you did it on a trampoline or a mattress. | |
| Dec 23, 2017 at 14:40 | comment | added | user78237 | @Rick I don't feel like pushing the ground in any way during this exercise. | |
| Dec 23, 2017 at 14:39 | answer | added | Olin Lathrop | timeline score: 2 | |
| Dec 23, 2017 at 14:36 | comment | added | Rick | There's an external force on the system you defined, that is the reaction from the ground. If you were floating in deep space and did that exercise, your other body parts would move but overall your center of mass won't accelerate. | |
| Dec 23, 2017 at 14:31 | history | asked | user78237 | CC BY-SA 3.0 |