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# How much would a 110-pound person weigh on Pluto?

Question #43054. Asked by Hamlet.. (Jan 05 04 10:07 PM)

Hijakr

7.33 pounds.

Gravity on Pluto is ~ 1/15 that of earth.

 Jan 05 04, 11:43 PM
Senior Moments

according to http://astrowww.astro.indiana.edu/~classweb/a100s0489/hw/hw11.html

(weight on Pluto)/(weight on earth) = (0.00256)*(1/0.176)2 = 0.08

A 100 lb person weighs 8 lbs on Pluto.
Therefore a 110 lb person would weigh 8.8 lbs

according to
http://btc.montana.edu/ceres/html/weight.html
you would weigh 7.590000000000001 lbs so there seems to be a considerable variation between different sites.

 Jan 06 04, 8:14 AM
Stew54

6.49 pounds

Oh. As there seems such a discrepancy I'd better say where I got my multiplier from:

http://ks.essortment.com/weightonplan_rvrp.htm
suggests you multiply the earth wight by 0.059

 Jan 06 04, 8:14 AM
sequoianoir

I agree with Stew.
Pluto's gravity is just over 1/17th of that of the Earth's.
Using NASA's own figures the multiplying factor is 0.059 which makes it 6.49 pounds.

 Jan 06 04, 12:00 PM
Hamlet.

The source I have says that the acceleration due to gravity for Pluto is 0.29 m/s (to the 2nd power) thus a 110-pound earthling would weigh only 3 lbs on Pluto!

The Handy Physics Answer Book (pg. 42) by P. Erik Gunderson...

 Jan 06 04, 11:06 PM

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