00:01
We have three questions relating to newton's gravitational equation, where force of gravity is equal to the gravitational constant times the mass of object one, time the mass of object two, divided by the distance between the objects squared.
00:15
So for the first one, we're told the force between two objects is 9 ,22929 newtons.
00:23
We want to know if they are one times closer, what would be the force? and so anything but one, it would change.
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But since it's one, we have r over 1, 1 squared is still 1.
00:36
And so your answer is the same.
00:39
Now, if it was 2 times closer, this would be 4 times greater.
00:45
But since it's 1, it's not going to change anything.
00:48
Number 2, we want to know the gravitational force felt on a 3 kilogram object on earth.
00:53
And so there's two ways we can do this.
00:55
Using our large gravitational constant, which is 6 .67 times 10 to the 3 .3.
01:00
Negative 11 times the massive object 1, times the massive object 2, which is going to be earth, which is 6 times 10 to the 24...