Question

If mass of the planet is 10% less than that of

Answer 1

Answer:

25kg

Explanation:

The formula for acceleration due to gravity is:

$g=\dfrac{GM}{r^2}$

Here, G represents a constant and M represents the mass of the object. We don't need to know the actual values to solve this, then: We can just multiply by the amount they are multiplied relative to earth.

$g=\dfrac{G(0.9M)}{(1.2r)^2}=0.625g$

Multiplying this by the weight of the person on Earth of 40kg, you get 0.625*40=25kg.

Hope this helps!