There are actually two forces acting on the ball as it leaves your hand: the force you use throwing the ball and the inertia from the forward motion of the car.
(two forces; acting; on the ball) (it; leaves; your hand) (the force; use; throwing the ball and the inertia from the forward motion of the car) Context(the force use,List([73, 90))):(you; throwing; the ball and the inertia from the forward motion of the car)
the force use,List([73, 90))
two forces it the force you
acting leaves use throwing
on the ball
your hand
throwing the ball and the inertia from the forward motion of the car
the ball and the inertia from the forward motion of the car