gravitation

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# gravitation - PowerPoint PPT Presentation

CENTRIFUGAL. oblate spheroid. gravity increasing. g*. R 3. centrifugal increasing. F gravitation /m = - GM r. r 2. gravitation. g. R 2. F centrifugal /m = W 2 rR. R. THIS IS ONE OF THE APPARENT ACCELERATIONS!. r. R 1. g = F gravitation /m + F centrifugal /m.

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## PowerPoint Slideshow about ' gravitation' - hea

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Presentation Transcript

CENTRIFUGAL

oblate spheroid

gravityincreasing

g*

R3

centrifugal increasing

Fgravitation/m = -GMr

r2

gravitation

g

R2

Fcentrifugal/m = W2rR

R

THIS IS ONE OF THE APPARENT ACCELERATIONS!

r

R1

g =Fgravitation/m + Fcentrifugal/m

The reduction in gravitation (apparent gravity) leads to an equatorwardcomponent of gravity and hence a shearing stress which deforms the

earth. Hence, the equator is uphill!

Why doesn’t the object roll toward the pole?