{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

p111_lecture12

# p111_lecture12 - Chapter 6 Work and Energy 6.4 Conservative...

This preview shows pages 1–7. Sign up to view the full content.

Chapter 6 Work and Energy

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

View Full Document
6.4 Conservative Versus Nonconservative Forces DEFINITION OF A CONSERVATIVE FORCE Version 1 A force is conservative when the work it does on a moving object is independent of the path between the object’s initial and final positions. Version 2 A force is conservative when it does no work on an object moving around a closed path, starting and finishing at the same point.
6.4 Conservative Versus Nonconservative Forces

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

View Full Document
6.4 Conservative Versus Nonconservative Forces Version 1 A force is conservative when the work it does on a moving object is independent of the path between the object’s initial and final positions. ( ) f o h h mg W ! = gravity
6.4 Conservative Versus Nonconservative Forces Version 2 A force is conservative when it does no work on an object moving around a closed path, starting and finishing at the same point. f o h h = ( ) f o h h mg W ! = gravity W gravity = 0

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

View Full Document
6.4 Conservative Versus Nonconservative Forces An example of a nonconservative force is the kinetic frictional force. ( ) s f s f s F W k k ! = = = o 180 cos cos " The work done by the kinetic frictional force is always negative. Thus, it is impossible for the work it does on an object that moves around a closed path to be zero.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern