He knew that friction would ultimately slow the ball down, and--very important--a force pushing it from behind would cause it to accelerate.
(He; knew; that friction would ultimately slow the ball down, and--very important--a force pushing it from behind would cause it to accelerate) Context(He knew,List([0, 7))):(friction; would ultimately slow down very important; the ball) (a force pushing it from behind; would cause; it to accelerate) Context(a force pushing it from behind would cause,List([80, 122))):(a force; pushing; it; from behind) Context(a force pushing it from behind would cause,List([80, 122))):(it; to accelerate; )
He knew,List([0, 7)) a force pushing it from behind would cause,List([80, 122)) a force pushing it from behind would cause,List([80, 122))
He friction a force pushing it from behind a force it
knew would ultimately slow down very important would cause pushing to accelerate
that friction would ultimately slow the ball down, and--very important--a force pushing it from behind would cause it to accelerate
the ball
it to accelerate
it from behind