Timeline for Does our weight depend on the floor on which the weighing machine is placed?
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
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| Nov 27, 2016 at 16:43 | comment | added | Steeven | @user3219492 Thank you for pictures. These would be great to add to the original question. I see much better now, why you are so confused about this - and I agree, this is an odd result. | |
| Nov 27, 2016 at 16:34 | comment | added | user3219492 | Note the difference is a lot than what I told you. | |
| Nov 27, 2016 at 16:32 | comment | added | user3219492 | Hi, Steven. I don't have a weighing machine. So I had to ask my friend (he has one) to take a photo and send me. Sorry for the delay. I have uploaded the photos in my drive drive.google.com/file/d/0B16F4aE0W_m6VjZFS0pjWWEtdUE/… and drive.google.com/file/d/0B16F4aE0W_m6VVJGY2g0Ry1LdjQ/… | |
| Nov 26, 2016 at 15:04 | comment | added | Steeven | @user3219492 You were standing on a scale on flexible bedsheets and at the same time measuring it to be perfectly horizontal? A difference of 3 kg doesn't need much misalignment. But there are other factors that could influence it - if you could post a picture of the setup, that would be very helpful. | |
| Nov 26, 2016 at 14:32 | comment | added | user3219492 | Yes. I ensured that the scale was not inclined so that the force doesn't get resolved into cos and sin components. | |
| Nov 26, 2016 at 11:57 | comment | added | Steeven | @user3219492 Was the scale 100 % horizontal? | |
| Nov 26, 2016 at 11:09 | comment | added | user3219492 | Oops. It must be -a (as decelerating). Recently I myself tried with a weighing machine and recorded the above values. When the bed sheet can no more be compressed, my body won't be moving. If that is the case, then the weighing machine must have recorded 57 Kg right? Why did it say 54 Kg? | |
| Nov 26, 2016 at 10:04 | comment | added | Steeven | @user3219492 Where do you get those numbers from? And also remember that the pillow is slowing down the motion, not speeding it up - when you jump onto a pillow, it compressed and you fall a bit down into the pillow. Afterwards all is still again. Nothing moves. So there is no $a$ anywhere. | |
| Nov 26, 2016 at 6:32 | comment | added | user3219492 | Thanks for the answer. mg - ma = m'g. Here m is real mass, m' is the mass of body on bed sheet, g is acceleration due to gravity, a is acceleration of body on smooth bedsheet. I am just modelling things based on what I understood from your answer. My m=57 kg,m' was 54kg. On solving I get the acceleration of the body on bedsheet is 0.701 m/(sec^2). But this 0.7 seems to be too big for describing the motion. While on pullow, I am not increasing my speed by 0.7 m every second. Did I misunderstand your answer and model it in wrong way? | |
| Nov 25, 2016 at 20:10 | history | answered | Steeven | CC BY-SA 3.0 |