Newton’s First Law of Motion An object will continue to do what it is doing if the forces acting on an object are balanced
An object at rest… will stay at rest…
An object in motion… will continue in motion Unless… it is acted upon my an outside force
Force any push any pull air resistance gravity The combination of all the forces on an object is called the NET FORCE
Balanced Forces do not change the motion of an object
Unbalanced Forces Forces acting on an object that combine and form a net force that is NOT zero
According to Newton’s First law of motion If the net force of an object is zero, the objects motion does not change
Inertia is the tendency for an object to keep doing what it is doing So, we call Newton’s 1st law the law of inertia
If I roll a ball across the carpet towards the back cabinet- what will happen ?
Buckle Up Dummy! Before the crash the dummy moves at a constant velocity with no seat belt the dummy will continue to move at a constant velocity