Changes

===About Balanced Forces===

: When [[force]]s on an [[object]] are '''balanced''' there is no [[acceleration]] (change speed or direction).

:: An [[object]] in motion will tend to stay in motion in a straight line and an [[object]] at [[rest]] will tend to stay at [[rest]] unless an [[Unbalanced Forces|unbalanced force]] acts upon it.

: If the [[Resultant Force|resultant force]] on an [[object]] is zero, then the [[force]]s are '''balanced'''.