Question

The weight of a person on moon is 10N. What will be his weight on earth.

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Answer 1

Answer:

the weight of person on earth is 60kg

Answer 2

Answer:

The weight of the person on the surface of the earth will be 60N.

Explanation:

The weight of a person on an object is given as,

$W=mg$     (1)

Where,

W=weight of the person on the surface of the earth

m=mass of the person

g=acceleration due to gravity

And the weight on the surface of the moon is given as,

$W'=mg'$           (2)

Where,

W'=weight of the person on the surface of the moon

m=mass of the person

g'=acceleration on the surface of the moon

And we know that the acceleration on the surface of the moon is one-sixth of the acceleration on the surface of the earth. i.e.

$g'=\frac{g}{6}$        (3)

From the question we have,

W'=10N   (4)

By taking the ratio of equations (1) and (2) we get;

$\frac{W}{W'}=\frac{g}{g'}$       (5)

By placing all the required values in equation (5) we get;

$\frac{W}{10}=\frac{g}{\frac{g}{6}}$

$\frac{W}{10}=6$

$W=60N$

Hence, the weight of the person on the surface of the earth will be 60N.

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