Question

6. The weight of man in an elevator moving down with an acceleration of 9.8 m/s² will become
A) Double B) Half C) zero D) Unchanged

Answer 1

@hartnn

Answer 2

*

Answer 3

lol what ?

Answer 4

ikr?

Answer 5

Yeah right :)

Answer 6

@Dido525

Answer 7

@AbhimanyuPudi

Answer 8

Weight is unchanged, but he should feel weightless from the normal force of gravity being canceled out.

Answer 9

So what do you suppose is the Answer ? @jenxin

Answer 10

unchanged

Answer 11

The weight is unchanged. He feels weightless, but infact he is falling down the elevator at the same acceleration, like free falling off a building.

Answer 12

good stuff.

Answer 13

so @isratalo what changes? the guy's mass? or the force of the earth's gravity?

Answer 14

weight is mass times g, so if mass remains constant, g changes... right?

Answer 15

please say yes.

Answer 16

c'mon, it will be hilarious.

Answer 17

excellent. g is G * mass of earth/ (distance from center of earth to guy) ^2

Answer 18

I think you'll agree, G remains constant, universe wide. the mass of the earth doesn't change because some guy is falling down an elevator shaft, right? so the distance must change, right?

Answer 19

as an exercise, why don't you calculate the change in g as someone moves from, say, 1000m above the earth's surface to the surface itself.

Answer 20

you might learn something.

Answer 21

because the radius varies slightly. calculate the weight difference a 100kg person* would experience between those two locations.

Answer 22

then tell me if that's a significant difference*, even though in one case you're ~30,000 meters closer to the earth's center.

Answer 23

"AS the elevator is moving down towards the earth the bodies weight will increase by 9.8 each second. AND if it goes upward the weight will reduce by 9.8 each sec."
is false.

Answer 24

yep, pretty much.
g will not change significantly for any distance that is much less than the radius of the earth.

Answer 25

rfl

Answer 26

you should be banned from physics for not understanding this simple fact. and I don't mean the OS physics study channel, I mean physics, period.

Answer 27

don't forget...
"AS the elevator is moving down towards the earth the bodies weight will increase by 9.8 each second. AND if it goes upward the weight will reduce by 9.8 each sec."

lol

Answer 28

ya. rly.

Answer 29

thx for ur advice

Answer 30

nj deleting all your comments.