Homework Help: Physics

Posted by kathryn on Wednesday, November 7, 2012 at 11:51am.

If the 50.0 kg boy were in a spacecraft 5R from the center of the earth, what would his weight be? (Use the 50.0 kg boy for significant figures)

i got 20N again not sure.. it dosnt tell me if i got them wrong or right online classes are horrible and very confusing

Physics - Elena, Wednesday, November 7, 2012 at 2:58pm
On the Earth
mg=GmM/R²

In the spacecraft
mg'=GmM/(5R)²= {GmM/R²}/25=mg/25
His weight is 50.0/25 =2.0 N

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