Monday 12 July 2010

M1 Moments 12/07/10

  • Introduce moments as a turning effect
  • Define a moment as a force x perpendicular distance
  • Combine moments to find an overall moment about a pivot
  • Define equilibrium as moments sum to zero and resultant force zero
  • Setting up and solving problems involving moments

http://www.scribd.com/doc/34213745/M1-Moments-120710

Wednesday 7 July 2010

M1 Friction and slopes 07/07/10

  • Problem on a smooth inclined plane
  • Resolving forces parallel and perpendiclar to an inclined plane
  • Friction, limiting equilibrium and coefficient of friction
  • Finding the coefficient of friction - horizontal plane
  • Finding the coefficient of friction - inclined plane

http://www.scribd.com/doc/33999148/M1-Friction-and-Slopes-070710

Monday 5 July 2010

M1 Types of forces 05/07/10

  • Reminder of problem involvig particle in equilibrium
  • Defining types of forces - weight, normal reaction, tension, thrust, friction
  • Setting up problems - creating diagrams of forces
  • Resolving to horizontal and vertical components
  • Equating to find unknowns

http://www.scribd.com/doc/33914555/M1-Types-of-Forces-050710