Sir Isaac Newton: Universal Gravitational Attraction
Name: Isaac Newton
Born: 4 January 1643 (AD)
Died: 31 March 1727 (AD)
"Gravity explains the motions of the planets, but it cannot explain who set
the planets in motion. God governs all things and knows all that is or can be
done."
Newton proposed three theorems:
First
Second
Third
An object at rest will
continue to be at rest. An object moving will continue moving unless a
nonzero force is applied.
F = force
m = mass
a = acceleration
Every force has an equal
but opposite force in the same time
Gravity / Acceleration
The acceleration (also known
as gravity) depends purely upon the mass of the earth and the distance
the other mass is from the centre of the earth.
Attraction
Every object in the universe attracts
every other object with a force along the line of centers of the two
objects.