Gravitational field of the moon

[chocolatelover]

[SOLVED] gravitational field

Homework Statement

How much work is done by the Moon's gravitational field as a 1100kg meteor comes in from outer space and impacts on the Moon's surface?

Homework Equations

W=GMm/r

The Attempt at a Solution

W=6.67 X 10^-11(6 X 10^22)(1100kg)/1.5 X 10^6
=2.9 X 10^9

Thank you very much

 

[G01]

You should be getting the correct answer as long as the numbers you're using are correct. Check that value for the radius of the moon. Shouldn't it be 1.7*10^6 m? If so, your answer may be off a little bit.

 

[chocolatelover]

Thank you very much

Regards