# Gravitational Field

Hi guys!

What would happen to objects on the Earth's surface if it SLOWLY stopped spinning and Earth's gravitational field was kept as always.

Thx

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davenn
Gold Member
2019 Award
Hi welcome to PF

what do you think would happen ?
consider the difference of when you are in a car that stops quickly or slowly

Dave

LeoPedranjo
Hi welcome to PF

what do you think would happen ?
consider the difference of when you are in a car that stops quickly or slowly

Dave
Considering earths dimension, if it lost the angular momentum slowly due to somenthing we woundn't notice, right?

davenn
Gold Member
2019 Award
correct ...

Im not sure of the maths offhand, maybe some one else can chime in and
give info on how slow the deceleration would be before it wasn't noticeable

LeoPedranjo
jbriggs444
Homework Helper
2019 Award
c
Im not sure of the maths offhand, maybe some one else can chime in and
give info on how slow the deceleration would be before it wasn't noticeable
The Earth's rotation is slowing and we have noticed.

Yeah, different meanings of "noticeable". :)

davenn
davenn
Gold Member
2019 Award
The Earth's rotation is slowing and we have noticed.
indeed as with good instruments

Yeah, different meanings of "noticeable". :)
uh huh
so I wonder what would be the necessary deceleration to be humanly noticeable to the avg person ?

0.2 - 0.5g is easily noticeable with earthquake motion

jbriggs444
Homework Helper
2019 Award
so I wonder what would be the necessary deceleration to be humanly noticeable to the avg person ?

0.2 - 0.5g is easily noticeable with earthquake motion
Can you imagine the kind of ocean current you could get from something as tiny as 0.01 g? Goodbye, California.

sophiecentaur