The radio or the earth is approximately of 6 370 Km. A 20-Kg object is rised to a 160Km over the earth surface.
a) what is the weight of that object at that height?

Question

anonymous · Answer

g' =g(1 - 2h/R)

anonymous · Answer

w=mg'

anonymous · Answer

Thanks, now im working with the numbers in oder to get the answer ...

anonymous · Answer

should I tranform the units? coz i dont get the answer in my book.

g = 9.8;
h = 160;
R = 797;
m = 20;

g1 = g (1 - 2 h/R);
W = m*g1
W=117.305

the answer in my book is 186.5N.

anonymous · Answer

then i think i got it wrng..
g` = g(1  -   h/R)
srry

anonymous · Answer

No. I was wrong replacing the numbers lol