Transcript ME101 Lecture 1

Chapter 1 – kinematics of particles
• Today’s Objective:
• 1. Introduction to Dynamics
• 2. Basic Concepts
Chapter 1
1
What is Mechanics?
Chapter 1
2
DEFINITIONS
Chapter 1
3
NEWTON’S SECOND LAW
The acceleration of a particle is proportional to
the resultant force acting on it and in the
direction of this force.
F = ma
Chapter 1
4
UNITS
Units
Mass
Length
Time
Force
SI
U.S.
kilograms (kg)
slugs
meter (m)
foot (ft)
seconds (s)
seconds (s)
newton (N)
pound (lb)
Chapter 1
5
VECTORS
Chapter 1
6
VECTORS
Chapter 1
7
VECTORS
Chapter 1
8
VECTORS
Chapter 1
9
VECTORS
Chapter 1
10
RECTILINEAR MOTION
Chapter 1
11
RECTILINEAR MOTION
Chapter 1
12