There is a block which weight 30 N on the surface of the earth. What will be its weight on the surface of the planet A, which has four times the mass of earth, and twice the radius of the earth. ( Assume the 2GMgR== 10 m/s2)

There is a block which weight 30 N on the surface of the earth. What w

1.	There is a block which weight 30 N on the surface of the earth. What will be its weight on the surface of the planet A, which has four times the mass of earth, and twice the radius of the earth. ( Assume the 2GMgR== 10 m/s2)
Answer» your QUESTION is not proper ! but I understood !!!We know, W(E)=M(e)×gTherefore, 30N = M(e) × 10That is, M(e) = 30/10 = 3kgThus, the mass of the object on earth is 3kg. We know that the mass of the object remains the same through out the universe. Hence, mass of the object on the moon is also 3kg.We know, weight of the object on the moon =1/6 of the weight of the object on the earth.Therefore, W(m)=1/6×W(e)That is, W(m)=1/6 × 3N = 2NHence, the weight and mass of the object on the moon are 2N and 3kg respectively.

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There is a block which weight 30 N on the surface of the earth. What will be its weight on the surface of the planet A, which has four times the mass of earth, and twice the radius of the earth. ( Assume the 2GMgR== 10 m/s2)​

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There is a block which weight 30 N on the surface of the earth. What will be its weight on the surface of the planet A, which has four times the mass of earth, and twice the radius of the earth. ( Assume the 2GMgR== 10 m/s2)