acceleration due to gravity. Intuitition: 'g' will lower due to spinning because the ground itself is accelerating away > Bonus: How short would a day have to be for 'g' to be zero at the equator?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 63P: A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal...
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Answer the bonus question in full solution and details

Usual picture:
Rohting Pictue
"Towards
the centre"
a-0, so Fact =0
E- Fn
Lac
Frety pM-ac
Centripetal force =
centripetal
acceleration +
Newton's 2nd Law
my=F
Negative because
it's down towards
the centre of
Earth
Fn= MCg-a),
The centripetal acceleration takes away from the
acceleration due to gravity.
Intuitition: 'g' will lower due to spinning because the ground itself is accelerating away
Bonus:
How short would a day have to be for 'g' to be zero at the equator?
Transcribed Image Text:Usual picture: Rohting Pictue "Towards the centre" a-0, so Fact =0 E- Fn Lac Frety pM-ac Centripetal force = centripetal acceleration + Newton's 2nd Law my=F Negative because it's down towards the centre of Earth Fn= MCg-a), The centripetal acceleration takes away from the acceleration due to gravity. Intuitition: 'g' will lower due to spinning because the ground itself is accelerating away Bonus: How short would a day have to be for 'g' to be zero at the equator?
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