An astronaut weighs 1000N at the surface of the earth of radius 6500 km, what his weight will be at 13000 km and 19500km from the centre of the earth?(adsbygoogle = window.adsbygoogle || []).push({});

Do I have to calculate the new value of g at 13000 km using the following?

(G• Mearth) / (Rearth)2

Where:

G = 6.673 x 10-11 N m2/kg2

Mass of the earth = (5.98 x 1024 kg)

New Re = 13000 km (converted to m)

Then W = M x g

Is there another way of solving it?

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# Homework Help: Astronaut weight

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