9-13- Newton'sLawsI - Chapter 5 Newtons Laws of Motion...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chapter 5 Newton’s Laws of Motion Forces and Mass Newton’s Laws Types of Forces Dynamics (Newtonian Mechanics) • What causes the motion of an object? • What is force? • What is the connection between force and Motion? Force • A force is a push or a pull on an object. • A force is a vector. It has both magnitude and direction. • A force requires an agent, something that does the pushing or pulling. • A force is either a contact force or a long-range force. Gravitational Pushing Pulling Gravitational force
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Newton’s first law of motion An object at rest remains at rest as long as no net force acts on it. An object moving with constant velocity continues to move with the same speed and in the same direction as long as no net force acts on it. Key insight: Force is not needed to sustain an object’s velocity, only to change it. Net force : vector sum of all the forces acting on an object. Inertia : the natural tendency of an object to remain at rest Or in motion at a constant velocity. •The law is experimentally verified in inertial frames of reference ”. Mass : a quantitative measure of inertia . Net force : vector sum of all the forces acting on an object.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/06/2010 for the course PHYSICS 1220 taught by Professor Yung during the Fall '09 term at Missouri (Mizzou).

Page1 / 7

9-13- Newton'sLawsI - Chapter 5 Newtons Laws of Motion...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online