...geometry and philosophy, through which mechanics becomes a mathematical branch of physics, and are as follows : /. Every body continues in its state of rest, or of uniform motion in a right line, until a change is effected by the agency of some mechanical force....

...from a brief consideration of his simple statement of the laws of motion. The first of these laws is : Every body continues in its state of rest or of uniform...motion in a straight line, except in so far as it is compelled by impressed forces to change that state," Thus Professor Tait quotes, and fully approves,...

...discuss the First Law of Motion. 10. First Law of Motion. Every body continues in a state of rest or of uniform motion in a straight line, except in so far as it may be compelled to change that state by force acting on it. It is necessary to limit the meaning of the word motion...

...difficulty. 133. We will here repeat the Laws of Motion. I. Every body continues in a state of rest or of uniform motion in a straight line, except in so far as it may be compelled to change that state by force acting on it. II. Change of motion is proportional to the acting force,...

...We shall give them as laid down by Newton, and then follow them up with observations on each. ist. Every body continues in its state of rest, or of uniform...straight line, except in so far as it may be compelled to change that state by forces impressed upon it. id. Change of motion is proportional to the impressed...

...parallelogram of forces. — Newton states and illustrates the laws of motion as follows : — ' 1. Every body continues in its state of rest or of uniform motion in a straight line, except so far as it is compelled by impressed Jorces to change its state. Projectiles continue in their state...

...trace them into some of their consequences. LAW I. Every body will continue in its state of rest or of uniform motion in a straight line, except in so far as it is compelled by impressed force to change that state. time is required, to produce a finite velocity...

...brief consideration of his simple statement of the Laws of Motion. The first of these Laws is : — Every body continues in its state of rest or of uniform...motion in a straight line, except in so far as it is compelled by forces to change that state. In other words, any change whether in the direction or...

...the following form :— Law I. The centre of mass of the system perseveres in its state of rest, or of uniform motion in a straight line, except in so far as it is made to change that state by forces acting on the system from without. Law II. The change of momentum...

...great truth of the persistence of motion. He said, ' Every body perseveres in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled to change that state by impressed forces.' " " Then it follows," remarked Louisa, " that all the bodies...