How much would a 150 pound person weigh at the summit of Mt. Everest?

[glugglug]

150 lb weight is at sea level where? Altitude isn't the only thing to affect your weight. You weigh less at the equator than at other latitudes because part of your weight goes to rotational acceleration (centrifugal force from the earth spinning), and the movement speed is highest at the equator where the rotational path is longest.

You also weigh less when moving east than moving west, for the same reason.

 

[arcenite]

I predict.......... 149.99999999999978lbs

 

[Lonyo]

Originally posted by: LoKe
Which weighs more, a pound of bricks or a pound of feathers?

Which hurts more, me pounding you with bricks, or with feathers?

 

[Random Variable]

F=ma=(GmM)/r^2

a=GM/r^2

a=[(6.673×10^-11)*(5.9742x10^24kg)]/(6378100m+8850m)^2
a=9.77268m/s^2

F=(68.039554kg)*(9.77268m/s^2) = 665.17373 newtons = 149.54 lbs

 

[DrPizza]

If this is for a physics class, the answer is 150 pounds.

Significant digits

If your teacher isn't satisfied with this, then explain that he didn't state what the atmospheric pressure was when the weight was 150 pounds at sea level, nor did he give the latitude.

 

[mercanucaribe]

Originally posted by: ironwing
The free air elevation correction brings the weight down to 149.58 lbs. However you have to factor in the gravity anomaly created by the mountain and the thickened lithosphere of mountain root as well as the elevation. This will add a bit to the felt weight.

I used the info on page 9 of this link:
http://www.ees.nmt.edu/Geop/Classes/Geop308/308-Gravity-1.pdf

A plumb bob will be attracted toward a mountain, so yeah you might weigh more...