The assessment includes:

• Final exam (70%)
• Lab (10%)
• Two take-home assignments (each worth 5%, total 10%)
• Lecture-notes (10%)

Assessment results will be not be posted online. Online activities are for discussions only, no grading based on that. The first course-assignment will be given in 19/10, Friday.

Please introduce yourself in this blog. This is a class to learn
engineering mechanics, but also a class to make friends with in-class
and international students, and worldwidely recognized experts.

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Lecture 4 outline:

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On the assessment method. Thanks for many feedbacks. I will review them with you in the class.

Survey on the grading system. Survey sheet attached.

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When emailing the lecture-note to imechanica@gmail.com with the subject title as Lecture 1, please also put your information in the text message: Name, University ID, and Aerospace/Mechanical Engineering. Thanks.

1. A force is a relationship
2. A force is a vector

Newton's laws of motion

3rd law

 For every action, there is an equal and opposite reaction.

1. Cross product of two vectors

2. Equilibrium of many-particle system

1. Defition of moment vector

2. Mathematica deduction
   motivation: establish the concept of moment from the requirement of the Newton's laws when applied to many-particle system.

Reference: why the definition of a moment needs a cross product?

What is the purpose of the course?
Ensure students have a clear working understanding of the principles of engineering mechanics and an ability to apply them to simple engineering systems.

Brief description of the unit
• Scalar and vector quantities.
• Forces and Newton's laws of motions.
• Kinematics of a particle; co-ordinate systems.

• Equivalent force systems
• Equilibrium and the construction of free-body diagrams.
• Pin-jointed structures.
• Friction; self-locking systems.

Introduction (27/9, Thursday, 11-12am)
Survey (28/9, Friday, 3-4pm) 

Grading System

Please note that according to the New Grading System, no marks can be gained from answering the following questions. (1 October 2007)

Newton's 2nd law will be applied to study the equations of motion of a particle.

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Some interesting posts are listed here for course discussions:

• Pin-structure analysis using ABAQUS
• DNA can be treated as simple as a rod
• self-folding of Carbon nanotube

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New Grading System posted 

Why iMechanica?

iMechanica is an appropriate website for teaching/learning Engineering Mechanics for the following reasons:

Scalars are quantities that have magnitude only; they are independent of direction.

Vectors have both magnitude and direction. The length of a vector represents magnitude. The arrow shows direction.

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Newton's laws of motion

First
An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Second
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

Third
For every action, there is an equal and opposite reaction.

You are always welcome to visit my office (B14/Pariser), call (0161 306 8970), or email (henry.tan@manchester.ac.uk).

Grading System

If you are a faculty member on the tenure-track or a post-doc it's a good idea to chair a few minisymposia at conferences to buttress your resume.  Here's an opportunity for you:

Via: Lori Graham-Brady