|
Author
|
Message
|
![[Post New]](/templates/default/images/icon_minipost_new.gif)
24 Jan 2010 18:32:52 IST
|
|
|
what is moment of inertia?
|
|
|
|
25 Jan 2010 05:55:14 IST
|
|
|
Moment of inertia is basically the measurement of the ability of a body to resist a change in its angular position or rotational motion.
|
this reply:
4 points
(with 0
in
2
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
26 Jan 2010 11:04:32 IST
|
|
|
We have angular velocity instead of velocity, angular acceleration instead of acceleration and so on in rotaional mechanics. Similarly moment of inertia is simply the substitute of mass in rotational dynamics.
|
this reply:
0 points
(with 0
in
0
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
26 Jan 2010 11:09:58 IST
|
|
|
If you are not satisfied as yet, here is a bit of details. Before we define moment of inertia, we have to understand what is inertia. It is the resistance offered by a body to any force attempting to change its state of rest or state of uniform motion. The inertia is not a pseudo force; ie there must be an agent that applies this resistance. For simple dynamics this agent is mass. When we try to move a boulder, we feel a resistance. This is due to friction, which is a result of MASS. Thus mass is the inertial factor. In dynamics moment of inertia is the name of the inertial factor. When a body is undergoing pure rolling, and we try to stop its motion, we feel a resistance; this is offered by the moment of inertia.
|
this reply:
0 points
(with 0
in
0
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
30 Apr 2011 18:44:31 IST
|
|
|
Moment of InertiaMoment of inertia is the name given to rotational inertia, the rotational analog of mass for linear motion. It appears in the relationships for the dynamics of rotational motion. The moment of inertia must be specified with respect to a chosen axis of rotation. For a point mass the moment of inertia is just the mass times the square of perpendicular distance to the rotation axis, I = mr2. That point mass relationship becomes the basis for all other moments of inertia since any object can be built up from a collection of point masses. 
Common Moments of Inertia  |
|
A paradox is an argument that starts with apparently acceptable assumptions and leads by apparently valid deductions to an apparent contradiction. Since logic admits no contradictions, either the apparently acceptable assumptions are not acceptable, or the apparently valid
deductions are not valid, or the apparent contradiction is not a contradiction. A paradox moves us to reexamine the argument until we find out what is wrong.
|
this reply:
0 points
(with 0
in
0
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
30 Apr 2011 20:02:33 IST
|
|
|
Moment of inertia is the name given to rotational inertia, the rotational analog of mass for linear motion. It appears in the relationships for the dynamics of rotational motion. The moment of inertia must be specified with respect to a chosen axis of rotation. For a point mass the moment of inertia is just the mass times the square of perpendicular distance to the rotation axis, I = mr2. That point mass relationship becomes the basis for all other moments of inertia since any object can be built up from a collection of point masses.
|
this reply:
0 points
(with 0
in
0
votes
)
[?]
|
|
You have to be logged on to rate
|
|
|
|
|
Moderation Team
Expert Question:
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
