Calculate Normal Force & Scale Reading in an Elevator | Apparent Weight vs. Gravity

[@RabboniBurgei-cb6jk]

very educative,, physics made easy

[@INTEGRALPHYSICS]

happy to be of help.

[@elchachu]

Of 4 videos ive watched on weightlessness this is the clearest because it is the only one that explains apparent weight. It may be possible to improve it further by also including a conceptual explanation of apparent weightlessness -- i.e. an explanation that is not formulated in terms of equations but only qualitatively, in terms of concepts. Here's how I understand this qualitatively (and this may be wrong...). Weight is mass times acceleration. Accelaration is relative to a frame of reference. If im in a free falling elevator, rellative to the elevator my accelaration is 0. So my (apparent) weight is 0. Does that make sense?

[@tombouie]

Quite Well-Communicated; An off-topic comment that I would appreciate your most excellent input on. Hopefully I'm a tenth as clear as you: If you move/spin around , you can experience & measure that motion/spin on yourself Then relatively-speaking if the universe moves/spins around a motionless/spin-less you, you should be able to experience & measure that motion/spin on yourself Therefore if both you & the universe move/spin together such that there no relative motion/spin, you experience & measure NO motion/spin on yourself Newton insisted that you were moving/spinning relative to absolute space that never moves/spins Mach insisted that you were moving/spinning relative to the distribution of all masses in the universe But it’s probably a little of both. ???Does this make any pragmatic sense or is it just another philosophical waste of time???

[@INTEGRALPHYSICS]

My contention is; Spin requires centripetal forces, therefore no spin can be measured absolutely. No motion on the other hand is indifferentiable from constant velocity in 1D, therefore you really don't have a way to determine what an absolute velocity of zero would actually be.

[@tombouie]

@@INTEGRALPHYSICS Hmmm .... but spin & consequential centripetal force relative to Newton's local fixed space surrounding it or Mach's distribution of all masses thru-outthe universe (aka ?reference frame?). It's such a simple philosophical question that no-one seems to address well especially within physics. Oh, that was a sincere compliment on your excellent video.

[@INTEGRALPHYSICS]

Thanks! You've given me something to think about.