The State of the Ladder


In order to hang a painting on a well,
Jim moved a ladder and leaned it against the wall. However,
the ladder started to slide away from the wall when
he started clim the ladder.
What is known:
 The length of the ladder is 12 ft.
 The ladder horizontal speed at the base is 3 ft/s.
 The distance between the bottom of the ladder
and the base of the wall is 8 ft.
