EME 206: APPLIED MECHANICS II
LECTURE NOTE
BY
ENGR. ASSOCIATE PROF.
IKPAMBESE, KUMADEN KUNCY
, Course synopsis
•
• -Inertia and change of motion, work, power and energy
• -Impulsive forces, impact of elastic bodies.
• -Kinematics of rigid bodies,
• -Instantaneous center of rotation and its application in
engineering, velocity and acceleration diagrams,
projectiles, motion in a circle.
• -Simple harmonic motion; motion of particle in two
dimensions, dynamic of rigid body. Simple machines
and inclined planes
, Inertia
• Inertia is the resistance of any physical object
to a change in its state of motion or rest. It is
represented numerically by an object’s mass
• Inertia comes from the latin word “iners”
meaning idle or lazy. It is the property of
bodies to remain in their state of motion
when left alone (i.e. when no force is acting
on them).
, Moment of Inertia
• Moment of inertia (also known as rotational
inertia) is a measure of an object’s resistance to
changes to its rotation. It is also defined as the
capacity of a cross-section to resist bending. It
must be specified with respect to a chosen axis
of rotation. 2
𝑥
• Moment of inertia of a plane area = 𝐴 2
𝑥
• Mass moment of inertia of a body = 𝑚
LECTURE NOTE
BY
ENGR. ASSOCIATE PROF.
IKPAMBESE, KUMADEN KUNCY
, Course synopsis
•
• -Inertia and change of motion, work, power and energy
• -Impulsive forces, impact of elastic bodies.
• -Kinematics of rigid bodies,
• -Instantaneous center of rotation and its application in
engineering, velocity and acceleration diagrams,
projectiles, motion in a circle.
• -Simple harmonic motion; motion of particle in two
dimensions, dynamic of rigid body. Simple machines
and inclined planes
, Inertia
• Inertia is the resistance of any physical object
to a change in its state of motion or rest. It is
represented numerically by an object’s mass
• Inertia comes from the latin word “iners”
meaning idle or lazy. It is the property of
bodies to remain in their state of motion
when left alone (i.e. when no force is acting
on them).
, Moment of Inertia
• Moment of inertia (also known as rotational
inertia) is a measure of an object’s resistance to
changes to its rotation. It is also defined as the
capacity of a cross-section to resist bending. It
must be specified with respect to a chosen axis
of rotation. 2
𝑥
• Moment of inertia of a plane area = 𝐴 2
𝑥
• Mass moment of inertia of a body = 𝑚
