2006-09-24 21:34:35 · 9 answers · asked by TC 1 in Science & Mathematics ➔ Physics
He isn't. Who gave you that idea?
Maybe he is only momentarily heavier because at the instant of squatting he is pressing down on the scale, but after that the reading should be the same.
2006-09-24 21:36:34 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Hehehe. Probably everyone is going to say this is wrong. But it's correct. You *do* weigh a bit more when you 'squat' or even lay down.
The reason is that 'weight' is what we call the force produced by the acceleration of gravity. (Yes, gravity is an acceleration and *not* a force âº)
Since the force between two masses (caused by their gravitational accelerations) in inversly proportional to the square of the distance between them, when you 'squat' you move part of your total mass closer to the center of mass of the Earth and, as a result, the total force produced is slightly larger which is equivalent to saying that you're 'heavier'.
How much heavier? Assume you move your center of mass 3 feet closer to the ground. The mean radius of the Earth is 3,979 miles times 5280 feet is 21,003,840 feet, then you have changed the distance by
100*3/21,003,840 = 1.428*10^(-5) percent. But the force is proportional to the square of the distance, so the force has increased by
(1.428*10^(-5))² = 0.0000000002039184 percent âº
But note that in the vicinity of something with one *helluva* massive gravitational field gradient (such as a black hole), the difference in acceleration over even a meter or so can cause 'tidal forces' which are large enough to rip anything to shreds.
Doug
2006-09-24 21:54:26 · answer #2 · answered by doug_donaghue 7 · 2⤊ 0⤋
first off, i don't think a person would be any heavier. It is a myth that people propagate :)
Having said that, however, "technically" we are becoming a denser amount of mass by squatting and so we might become EVER SO slightly 'heavier' (read, every part of the body pulled closer to the earth). However this is nowhere near to being measured, at least on a regular scale sitting at home.
2006-09-24 21:39:34 · answer #3 · answered by peace 2 · 0⤊ 0⤋
The reason is that you have caused the scales to tip the other way, whilst you are standing your bodyweight relies on the legs for the support but if you go into the squat position you take the weight of the stronges part of your body which are your upper thighs. The squat transfers the weight to the lower part causing it to become uneven, the lower part of your legs rely on the upper part to keep the Torso in place.
2006-09-24 21:43:09 · answer #4 · answered by Le Baron 3 · 1⤊ 0⤋
He isnt but if he is squating while on scales his centre of gravity shifts and this will effect the results.
2006-09-24 21:38:08 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Let me go squat on the scale and see if it changes my weight.
2006-09-24 21:43:12 · answer #6 · answered by ♥c0c0puffz♥ 7 · 0⤊ 1⤋
I agree with this guy.
WEIGHT=MASS(ACCELERATION DUE TO GRAVITY)
WEIGHT=MASS(9.8 g/m^2)
you weigh more because the altitude is decreased.
Your MASS (amount of matter in an object) is the one which remains constant wherever you are while WEIGHT depends on the pull of gravity upon you.
2006-09-24 23:52:07 · answer #7 · answered by Artie O 2 · 0⤊ 0⤋
I don't see how he can be!
2006-09-24 21:42:18 · answer #8 · answered by survivor 5 · 1⤊ 0⤋
when standing mass is balanced but when we sit the whole mass is concentrated in the middle. his mass is unequally distributed.
2006-09-25 01:23:53 · answer #9 · answered by sana 2 · 0⤊ 1⤋