- #1
tkninetyfive
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Homework Statement
m=55kg
r=6400km
The Earth's rotation increases so on a bathroom scale, it now reads that you weight 0.
how long is 1 "day" on Earth?
Homework Equations
I keep trying to figure this one out, but with different ways I've tried, I put Fg as 0 and it basically negates my whole equation. The section in the course we are on right now is Centrapetal force and gravitation.
The Attempt at a Solution
This is the one "answer" I've gotten but it seems a little too easy.
fnet=ma
fc=mac
fc=mv2/r
mg=mv2/r
g=v2/r
√rg=v
plug in the radius in metres, 9.8 for g to get v, and then solve with 2∏r/v which is the same a d/v=t.
any help? :(