Answer:
Step-by-step explanation:
According to newton's law of gravitation , equal force of attraction are applied on two masses m₁ and m₂ placed at distance d . This force is given by the expression
F = G m₁ m₂ / d²
If one of the masses be earth with mass M then d = radius of earth R
Force F = G Mm₁ / R²
this force is applied on both the earth and mass m₁ in equal magnitude and in opposite direction.
In the formula F is proportional to m₁
among the given objects in the question , m₁ of object varies in the following order.
skyscraper > car > human being > basket ball
So Force F on the earth by them will also vary in the same order.