Question

How much weight is generated by and 80 kg person of planet earth or on the moon

Answer 1

Explanation:

We would take the mass given, 80 kg, and multiply it times the acceleration of Earth's downward pull on that mass, 9.8 m/s/s. So the weight on Earth is 784 newtons. So the weight of the same 80 kg mass on the moon is 133.28 N.

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Answer 2

Given: Weight of the person on earth = 80 kg

To find: Weight of the person on the moon

Solution:

The weight of an object on the earth is the force by which the object is attracted towards the earth.

Similarly, the weight of the same object on the moon will be the force by which the object is attracted towards the moon.

The mass of the earth is 5.98 × 10²⁴ kg and the mass of the moon is 7.36 × 10²².

Radius of the earth is 6.37 × 10⁶ and that of the moon is 1.74 × 10⁶.

By applying the formula $Weight \:W = G\:\frac{M.m}{R^{2}}$, we can conclude that the weight of an object on earth will be six times the weight of the same object on the moon.

Thus,

Weight of the object on the moon = 1/6 weight of the object on earth

$W_{m}=\frac{W_{e}}{6}$

$W_{m}=\frac{80}{6}$

$W_{m}=13.33 kg$

Answer:

A weight of 13.33 kg will be generated by an 80 kg person of planet earth on the moon.