anonymous
  • anonymous
how should we calculate weight of earth ?
MIT 8.01 Physics I Classical Mechanics, Fall 1999
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Mani_Jha
  • Mani_Jha
Drop an object from a known height h. Measure the time it takes to reach the ground.(let it be t). Calculate the acceleration using the equations of motion(do you know them?). The acceleration will come out to be equal to 9.801 m/s^2 approximately. What is the force of attraction between the object and the earth? If m is the object's mass and M is the earth's mass, it is: \[F=GMm/r^2\] where r=6400km is the earth's radius. Now, acceleration is equal to0 Force/Mass, isn't it? \[9.801=(GMm/r ^{2})/m\] or,\[9.801=GM/r ^{?}\] Using G=6.67x10^-11, Calculate M. Clear?
anonymous
  • anonymous
Thank you. its nice and very helpful :) thank again and good day
Mani_Jha
  • Mani_Jha
No problem :). Are you from India?

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anonymous
  • anonymous
yes and what about you ?
Mani_Jha
  • Mani_Jha
me too ;)
anonymous
  • anonymous
thats good nice to meet you :)

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