- #1

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What is the size of the force of attraction between a student of mass 48.9 kg and Earth?

answer in units of N.

please help, i don't get how to do this!

thanks..

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- Thread starter jojo14
- Start date

- #1

- 5

- 0

What is the size of the force of attraction between a student of mass 48.9 kg and Earth?

answer in units of N.

please help, i don't get how to do this!

thanks..

- #2

Delphi51

Homework Helper

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The force of gravity between two masses like the Earth and the student on the space shuttle is F = GMm/d² where M is the mass of the Earth and m the mass of the student. Often it is convenient to split this formula into two parts. We say F = mg and g = GM/d². It actually turns out that there really is a g field lying between the two masses. The M causes a gravitational field g around itself and the field causes the force on m. Anyway, that's all you need to do your problem!

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