Friction causes the ball to move at a rate proportional to the movement of the mouse.
(Friction; causes; the ball to move at a rate proportional to the movement of the mouse) Context(Friction causes,List([0, 15))):(the ball; to move; )
Friction causes,List([0, 15))
Friction the ball
causes to move
the ball to move at a rate proportional to the movement of the mouse