Two falling inflated balls of different masses land at the same time.
1 answer:
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The gravitational force would be
Explanation:
The magnitude of the gravitational force between two objects is given by
where
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them
In this case, we can write the gravitational force between the Moon and the Earth as:
where M is the Earth's mass and m is the Moon's mass.
We know that:
is their separation
is the force between them
So we can find:
Now, we are asked to find the gravitational force when the Earth and the Moon are separated by
In this case the new force would be
And substituting the values of (GMm) found previously and r', we find
Learn more about gravitational force:
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