Gravity.
Gravity, which force will equal the weight of the books
graverty
mass of object *force of gravity
'It's called Tension
yes
gravity
Leaves fall down due to the force of gravity pulling on them.
bad girlfriend...or gravity
In my case, the magnitude of the force is 195 pounds. In return, I am also pulling the Earth up toward me with a force of 195 pounds.
less gravitational force pulling you down.
The object's own weight is pulling it down.
upthrust