The radius of the earth is about 6400 km and that of mars is about 3200 km . The mass of the earth is about 10 times the mass of mars. If an object weigh 200 Newton on earth's surface , then wht will be it's surface on the mars?

Weight on earth = 200 kgWe= mgeWeight on mars = mgmWm =mgmg = GMR2ge = GMRe2gm = GMRm2gmge = Gm32002G10m64002 = 25Wm200 = gmge = 25wm = 80 kg

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