a body weighs 90 KGF on the surface of earth how much it will weight on the surface of Mars if the radius of mass is 1/2 and mass of Mars is 1/9 of that of Earth?
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=90×1/9×1/2
=10×1/2
=5 kg
therefore , it will weigh only 5 kg on mars
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Answer:
Answer:
The body weight is 90Kgf
so,the mass is 90N
Mass of mars =1/9
Radius =1/2 of earth
F=mg=m(G M/Re 2)
F mars /F earth = m (G M / R e 2)mars/m (G M/R e 2)earth
F mars/90 kg =(M earth/9)/m earth *(r earth)e 2/{r earth /2}e 2
=4/9
=90*4/9
=>mass of mars =40Kgf
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