Mass Distribution: Polar Icecaps Melting & Day Length

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SUMMARY

The melting of polar icecaps would lead to a redistribution of mass across the Earth, impacting the length of a day. Specifically, as water from the icecaps spreads, it alters the Earth's moment of inertia, which in turn affects its rotation speed. The consensus in the discussion indicates that this redistribution would result in a longer day due to the conservation of angular momentum. Understanding these physical principles is crucial for grasping the implications of mass distribution changes on Earth's rotation.

PREREQUISITES
  • Understanding of angular momentum
  • Knowledge of moment of inertia
  • Familiarity with Earth's rotational dynamics
  • Basic principles of mass distribution
NEXT STEPS
  • Research the effects of mass redistribution on Earth's rotation
  • Study the principles of angular momentum conservation
  • Explore the relationship between moment of inertia and rotational speed
  • Investigate climate change impacts on polar icecap dynamics
USEFUL FOR

Students in physics, environmental scientists, and anyone interested in the effects of climate change on Earth's physical properties.

Jonathan Teas
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Homework Statement


If the polar icecaps melted, the resulting water would spread over the entire earth. This new mass distrubtion would tend to make the length of a day:
a.longer,b.shorter,c.be unchanged,d.explode


Homework Equations


Mass does distribute uniformly but I am not sure how this affects the length of a day.


The Attempt at a Solution

 
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Think about rotation, angular momentum and moment of inertia
 

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