[pic] The flywheel of an engine has moment of inertia 2.5 kg•m2 about its rotation axis. What constant torque is required to bring it up to an angular speed of 400 rev/min in 8s, starting from at rest?

[pic] A solid, uniform cylinder with mass 8.25kg and diameter 15cm is spinning at 200 rpm on a thin, frictionless axle that stop the cylinder axis. You design a simple friction brake to stop the cylinder by pressing the brake against the outer rim with a normal force. The coefficient of kinetic friction between the brake and rim is 0.333. What must be the applied normal force to bring the cylinder to rest after it has turned through 5.25 rev?

[pic] A 2.2kg hoop 1.2m in diameter is rolling to the right without slipping on a horizontal floor at a steady 3 rad/s. (a) how fast is its center moving? (b) What is the total kinetic energy of the hip? (c) Find the velocity vector of each of the following points as viewed by a person at rest on the ground: i) the highest point on the hoop; ii) the lowest point on the hoop; iii) the point on the right side of the hoop, midway between the hoop and the bottom. (d) Find the velocity vector for each points in part c, except as viewed by someone moving along with same velocity as the hoop.

[pic] A solid ball is released from res and slides down a hillside that slopes downward at 65° from the horizontal. (a) What minimum value must the coefficient of static friction between the hill and ball surfaces have for no slipping to occur? (b) Would the coefficient of friction calculated in part a changed if the mass were doubled to 4kg?

[pic] A 392N wheel comes off a moving truck and rolls without slipping along a highway. At the bottom of a hill it is rotating at 25 rad/s. The radius of the wheel is 0.6m, and its moment of inertia about its axis is 0.8MR2. Friction does work on the wheel as it rolls up the hill to a stop, a height h above the bottom of the hill; this work has absolute value 3500J. Calculate h.

...Moment of inertia of a flywheel
Jonathan Prevett 13/11/14
Uday Ravish
Aim:
To determine the moment of inertia of a flywheel.
Apparatus:
Fly wheel and axel, weight hanger, slotted weights, stop watch, metre ruler.
Definitions:
Moment of Inertia- a quantity expressing a body's tendency to resist angular acceleration
Radius of Gyration- the distribution of the components of an...

...Moment of Inertia
1. Abstract
The goal of this study is to understand the transfer of potential energy to kinetic energy of rotation and kinetic energy of translation. The moment of inertia of the cross arm my group measured with the conservation of energy equation is: 0.01044 kg/m2 (with the mass of 15g), 0.01055 kg/m2 (with the mass of 30g), which is kind of similar to the standard magnitude of the moment of...

...Moment of Inertia Formula
The Moment of inertia is the property by the virtue of which the body resists angular acceleration. In simple words we can say it is the measure of the amount of moment given to the body to overcome its own inertia.
It’s all about the body offering resistance to speed up or slow down its own motion.
Moment of inertia is given by the formula
Where
R =...

...MOMENT OF INERTIA
Chua, Richard Janssen J., PHY11L/A3
chardsenchua77@yahoo.com
Abstract
The moment of inertia, or also known as the rotational inertia, is the rotational analog of a rigid body to a linear or an angular motion. It is one of the fundamentals of the dynamics of rotational motion. The moment of inertia must always be in a specified chosen axis of rotation. The point of motion...

...Title: Mass Moment of Inertia
Objective:
To determine mass moment of inertia of a part using experimental method.
Theory:
If a part has been designed and built, its mass moment of inertia can be determined approximately by a simple experiment. This requires that the part be swung about any axis (other than one that passes through its CG) parallel to that about which the moment is sought and...

...Moment of Inertia
Academic Resource Center
What is a Moment of Inertia?
• It is a measure of an object’s resistance to changes to its
rotation.
• Also defined as the capacity of a cross-section to resist
bending.
• It must be specified with respect to a chosen axis of rotation.
• It is usually quantified in m4 or kgm2
Quick Note about Centroids….
• The centroid, or center of gravity, of any object is the point
within...

...AP Physics Summer Assignment with
Dr. Crymes
Welcome to AP Physics B! It is a college level
physics course that is fun, interesting, and challenging
on a level you’ve not yet experienced. This assignment
will review all of the prerequisite knowledge expected of
you. There are 7 parts to this assignment. By taking the
time to review and understand all parts of this
assignment, you will help yourself acclimate to the rigor
and pacing of AP...

...Sadie D. Hood Lab 8: Moment of Inertia Partner: Florence Doval Due 16 November 2011 Aims: To use a centripetal force apparatus to calculate the moment of inertia of rotating weights, using theories derived from ideas of energy transfer (Im = MR2 (g/2h)(t2-t02)) and point mass appoximation (m1r12 + m2r22). Set Up
Procedure First we measured the weights of two masses and wingnuts that secure them. Then we placed one of the masses on the...

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