When the ball is released, the only thing that affects its motion is gravity, which pulls the ball straight down.
(the ball; is released; ) (the only thing; affects; its motion) (the only thing that affects its motion; is; gravity, which pulls the ball straight down; T:When the ball is released) (gravity; pulls; the ball; straight down)
the ball the only thing the only thing that affects its motion gravity
is released affects is pulls
its motion
gravity, which pulls the ball straight down T:When the ball is released
the ball straight down