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skins266
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Homework Statement
The radius of the Earth is about 6.38E3 km. A 7.38E3 N spacecraft travels away from Earth. What is the weight of the spacecraft at the following disatnaces.
a)6.38E3 km
b)1.31E4 km
Homework Equations
F=GMeMship/r^2
The Attempt at a Solution
but that won't work because the mass of the ship is in N so I divide it by 9.8 and then the two radiuses need to be added so it will look like this
F = (6.67E-11)(5.98E24)(753.1)/(6.38E3+6.38E3)^2
=3E17/1.63E8
=1840490798
but that is not the right answer when I punch it into Webassign, and I figure once I get the first one the second one is exactly the same way. So what am I doing wrong?
Oh and the answers are in Newtons