Final answer:
The statement that a cup of water remains at rest until a force moves it pertains to Newton's first law of motion, not the law of momentum, and is therefore b) false.
Step-by-step explanation:
Is the following statement true or false? A cup of water you set down will remain in that place until you or another force moves it is an example of the law of momentum. The correct answer is b) false. This concept is actually describing Newton's first law of motion, sometimes called the law of inertia. According to Newton's first law: Every object will continue to be in a state of rest or move at a constant speed in a straight line unless it is compelled to change by an outside force. The law of momentum, more accurately referred to as the Law of Conservation of Momentum, states that in an isolated system, the total momentum remains constant if no external forces act upon it.