Posted by **makayla** on Friday, April 30, 2010 at 11:54am.

if i weigh 100 lbs on earth how much would i weigh on halley's comet?

- science -
**drwls**, Friday, April 30, 2010 at 12:27pm
Were you really assigned this problem or are you just curious?

You need to know both the size of the solid head of the comet (the only place where you could stand), and its mass. The head is not spherical, having an oblong dimension of about 15 x 8 km. The mass is M = 2.2*10^14 kg. Because it is not spherical, your weight will depend upon where you are standing.

For an approximate value of your weight there, in Newtons

use a mean radius of R = 5500 m and the formula

W = G*M*m/R^2

where G is the universal constant of gravity, 6.67x10^-11 N*m^2/kg^2.

m = 45.5 kg is your own mass.

W = 0.022 Newtons

That is about 0.005 lb or 0.08 oz

## Answer This Question

## Related Questions

- science - if i weigh 100 lbs on earth and i went to another planet whose gravity...
- science - if you weigh 100 pounds on earth than how much would you weigh on each...
- College Physics - In 1986, the distance of closest approach of Halley’s comet to...
- algebra - The force of gravity is inversely proportional to the square of the ...
- Math - Q. Sheila's skates weigh 4 lbs. 3 oz., Heidi's skates weigh 3 lbs. 7 oz...
- math - An object that weighs 10 ib on earthwould weigh only 4 ib on mars. If you...
- MATH - Halley's comet appears in the sky approximately once every 77 years. If ...
- Math - A Man and 6 boxes weigh 300 lbs. If the man weighs 228 lbs., how much ...
- Algebra - Terry is mailing two boxes. Together they weigh 21 lbs. If the smaller...
- Alegbra - Terry is mailing two boxes. Together they weigh 21 lbs. If the smaller...

More Related Questions