Timeline for work done is zero if displacement of point of application of force is zero but why can't we assume forces on COM and its displacement
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Feb 15, 2017 at 16:22 | vote | accept | Us18 | ||
| Feb 15, 2017 at 16:22 | |||||
| Feb 15, 2017 at 15:59 | history | edited | Shashaank | CC BY-SA 3.0 |
added 436 characters in body
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| Feb 15, 2017 at 15:53 | comment | added | Shashaank | @YashasSamaga On thinking , his point is also right. That when I bend down trying to jump there is a normal force which acts for a small time . I have added to my answer. Have a go at it ! | |
| Feb 15, 2017 at 15:45 | comment | added | Shashaank | @YashasSamaga Yes I knew that point that's why I wrote the last line that Normal Force doesn't cause the displacement . Its the muscular force ! | |
| Feb 15, 2017 at 15:43 | comment | added | Yashas | I am kneeling down. I start moving upwards. My legs are still in contact with the ground. There is a normal force (not $mg$ but also not zero). My center of mass is displaced. | |
| Feb 15, 2017 at 15:16 | history | answered | Shashaank | CC BY-SA 3.0 |