Question

A person on the surface of the moon:

• A. Does not feel the effect of earth's gravity because the gravity due to moon is such stronger.
• B. Does not feel the effect of earth's gravity.
• C. Does not feel the effect of earth's gravity and moon gravity he is freely towards the earth.
• D. Feels only the combined effect of earth's and moon gravity which are comparable in magnet.

Answer 1

The correct option is A Does not feel the effect of earth's gravity because the gravity due to moon is such stronger.

The value of $g_e$ on the surface of moon will be,

$g^{\prime }=g{\left(1+\frac{h}{R}\right)}^{-2}$

After putting the values of $g,h,R$

we get the value of $g^{\prime }$ as,

$g^{\prime }=.0026m/s^2$

This is almost negligible and can’t be felt on the person standing on moon.

Thus, a person on the surface of the moon does not feel the effect of earth's gravity because the gravity due to moon is much stronger.