an astronaut has a weight 600n on earth but when he arrived on the moon his weight has changed to 100N.Explain the change
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Explanation:
See this change is simple.
We all know that the force of gravity is 1/6th of that of the earth.
this is because
on earth
g = GM/D²
Radius of earth = 4 times radius of moon.
mass of earth = 100 times mass of moon.
So, on moon
g' = G 100M/(4D)²
=100/16 GM/D
=6.25 GM/D
=6 g on Earth approx.
since g on moon = 1/6 g on earth
∴ it is obvious that w on moon will also be 1/6 of that on Earth.
thus 600 N on earth = 100 N on moon.
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