Question

A weight of a man is 686 N on the surface of the earth. Calculate the weight of the same person on moon.(g value of a moon is
$1.625ms ^{ - 2}$
)​

Answer 1

Explanation:

one sixth weight on earth .

1/6×686=114.3 N approx

hope it will help

Answer 2

The weight of the same person on moon is 113.7 N.

Explanation:

Given that,

Weight of the person on the surface of Earth, W = 686 N

We need to find the weight of the same person on moon. We know that the weight of an object is the force with which gravity pulls it. It is given by :

W = mg

$m=\dfrac{W}{g}\\\\m=\dfrac{686}{9.8}\\\\m=70\ kg$

m of a body remains constant everywhere.

g is acceleration due to gravity on the surface at which the object is placed.

The acceleration due to gravity on the surface of moon is, $g'=1.625\ m/s^2$

$W'=mg'\\\\W'=70\times 1.625\\\\W'=113.7\ N$

So, the weight of the same person on moon is 113.7 N. Hence, this is the required solution.

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