Question

if an object weighs 200 N on earth what will be its weights on mars when the mass of mars is 0.11 times that of earth​

Answer 1

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Given:

Weight of object on Mars = 200N

 Radius of Earth = 6400 km

Radius of Mars = 3200 km

Mass of Earth (Me) = 10 x Mass of Mars (Mm)

⇒Me/Mm = 10

We Know That g α m/R²

⇒ge/gm = (Me/Mm)(Rm/Re)²

⇒ge/gm=10 x (3200/6400)²

⇒ge/gm = 10/4

⇒ gm = (2/5) ge

 Weight of object on Earth = M x ge = 200 N

Weight of object of Mars = M x gm

⇒ M[(2/5)ge]

⇒ Mge x (2/5)

= (200 x 2)/5 = 80 N

∴Weight Of Object on Mars = 80N

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Answer 2

That object weighs 200 on earth but on mars it would be 75.66 directly on mars