chapter 4-3

# chapter 4-3 - MOMENT OF A COUPLE(Section 4.6 Today's...

This preview shows pages 1–4. Sign up to view the full content.

Lecture Notes for Section 4.6 1 MOMENT OF A COUPLE (Section 4.6) Today’s Objectives : Students will be able to a) define a couple, and, b) determine the moment of a couple. In-Class activities : Check homework, if any Reading quiz Applications Moment of a Couple Concept quiz Group problem solving Attention quiz READING QUIZ 1. In statics, a couple is defined as __________ separated by a perpendicular distance. A) two forces in the same direction. B) two forces of equal magnitude. C) two forces of equal magnitude acting in same directions and having opposite senses. D) None of the above 2. The moment of a couple is called a _________ vector. A) free B) spin C) romantic D) sliding

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

View Full Document
Lecture Notes for Section 4.6 2 APPLICATIONS A torque or moment of 12 N · m is required to rotate the wheel. Which one of the two grips of the wheel above will require less force to rotate the wheel? APPLICATIONS (continued) The crossbar lug wrench is being used to loosen a lug net. What is the effect of changing dimensions a, b, or c on the force that must be applied?
Lecture Notes for Section 4.6 3 MOMENT OF A COUPLE (Section 4.6) A couple is defined as two parallel forces with the same magnitude, same direction but opposite in senses separated by a perpendicular distance d. The moment of a couple is defined as

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/19/2009 for the course ME 241 taught by Professor Itani during the Spring '08 term at Nevada.

### Page1 / 9

chapter 4-3 - MOMENT OF A COUPLE(Section 4.6 Today's...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online