Posted by **Anonymous** on Monday, February 22, 2010 at 11:06am.

Calculate the force of Earth's gravity on a spacecraft 12,800 km (2 Earth radii) above the Earth's surface if its mass is 1550 kg.

- college -
**bobpursley**, Monday, February 22, 2010 at 11:11am
Newton has a neat law of gravity:

Fg= G Me Ms /distance^2

That leads to the inverse relation.

The weight at Earth's surface is mg, which is at one Earth radii.

So if you go one more Earth radii, the weight will be mg/2^2

and if you go one more, as you asked, the weight will be mg/3^2

## Answer This Question

## Related Questions

- Physics - Calculate the force of gravity on a spacecraft 19200 km (3 earth radii...
- physics - calculate the force of Earth's gravity on a spacecraft 12,800 km (2 ...
- physics - Calculate the force of Earthâ€™s gravity on a spacecraft 2.00 Earth ...
- phyics-universal gravity - Calculate the force of gravity on a spacecraft 6400 ...
- physics - Calculate the force of gravity on a spacecraft 19200 km (3 earth radii...
- Physics - Calculate the force of gravity on a spacecraft 19200 km (3 earth radii...
- Physics - Calculate the force of gravity on a spacecraft 19200 km (3 earth radii...
- Physics - Calculate the force of the Earths gravity on a spacecraft 12,800 km (2...
- physics - Calculate the force of gravity on a 10 kg mass if it were 6.4x10^6 m ...
- physics - Calculate the force of gravity on a 12 kg mass if it were 6.4 106 m ...

More Related Questions