Chapter 9 Linear Momentum and Collisions
Linear Momentum
The linear momentum of an object of mass m moving with a velocity v is defined as
r r p = mv
the product of the mass and the velocity vector. SI Units are kg m/s Vector quantity, the direction of th
Simple Truss
Truss: (1). (1) Weightless members; (2). Connected by joints; (3). Loads are applied to joints. (1). Start from a triangle; (2). Add every 2 members to form a new joint; (3). (3) Supported by a pin and a roller. roller
Simple truss:
12-59
12-1
Chapter 12: Static Equilibrium and Elasticity i ilib i d l i i
12.1 12 1 Conditions for Equilibrium 12.2 Centre of Gravity 12.3 Rigid Objects in Static Equilibrium 12.4 Elastic Properties of Solids p
12-2
LECTURES of FE1001
Over 13 Weeks (39 hrs):
I.
Chapter 11
Angular Momentum
The Vector Product
There are instances where the product of two vectors is another vector
Earlier we saw where the product of two vectors was a scalar
This was called the dot product
The vector product of two vectors is also ca
Chapter 10
Rotation of a Rigid Object about a Fixed Axis
Rigid Object
A rigid object is one that is non-deformable
The relative locations of all particles making up the object remain constant. All real objects are deformable to some extent, but the rigid
Chapter 8
Potential Energy
Work done over a curvilinear path
r Fi
2
Work done over segment i r r = Fi ri
N
r ri
r r Total work done from 1 to 2 Fi ri r 2 r i =1 r r = lim Fi ri = F dr
r ri 0 i =1
1
1
Vector line integral
Work done that is independent of p
Chapter 7
Energy and Energy Transfer
^ Consider a constant force F= Fx i acting on an object which moves in a straight ^ line through a displacement x= xi
initial
Fx>0
final x
x >0 The work done by the force in the motion from initial position to final po
Chapter 6
Circular Motion and Other Applications of Newton's Laws
Uniform Circular Motion
A force, Fr , is directed toward the center of the circle This force is associated with an acceleration, ac Applying Newton's Second Law along the radial direction g
Chapter 5 The Laws of Motion
Force
Forces are what cause any change in the velocity of an object
A force is that which causes an acceleration
The net force is the vector sum of all the forces acting on an object
Also called total force, resultant force, o
Chapter 4 Motion in Two Dimensions
Motion in Two Dimensions
Using + or signs is not always sufficient to fully describe motion in more than one dimension
Vectors can be used to more fully describe motion
Still interested in displacement, velocity, and acc
Chapter 3: Vectors
3.1 Coordinate Systems 3.2 Vector and Scalar Quantities 3.3 Some Properties of Vectors 3.4 Components of a Vector and Unit Vectors
17-Aug-04 FE1001 3-1
3.1 Coordinate Systems
Used to describe the position of a point in space Coordinate
FE1001 Physics 1
A/P YAP Fook Fah
School of Mechanical & Aerospace Engineering (MAE) E-mail: mffyap@ntu.edu.sg Tel: 6790-4724 Office: N2-1B-49
LECTURES of FE1001
Over 13 Weeks (39 hrs): I. Dynamics (22 hrs) II. Static Equilibrium and Elasticity (6 hrs) II