SparkNotes Shopping Cart  |     |  Checkout
Brought to you by Barnes and Noble
Rotational Dynamics
  
 
Problems
Problem 2.1:
A single particle of mass 1 kg, starting from rest, experiences a torque that causes it to accelerate in a circular path of radius 2 m, completing a full revolution in 1 second. What is the work done by the torque over this full revolution?
[Solution]
Problem 2.2:
What is the kinetic energy of a single particle of mass 2 kg rotating around a circle of radius 4 m with an angular velocity of 3 rad/s?
[Solution]
Problem 2.3:
Often revolving doors have a built in resistance mechanism to keep the door from rotating dangerously quickly. A man pushing on a door of 100 kg at a distance of 1 meter from its center counteracts the resistance mechanism, keeping the door moving at a constant angular velocity if he pushes with a force of 40 N. If the door moves at a constant angular velocity of 5 rad/s, what is the power output of the man over this time?
[Solution]
Help | Feedback | Make a request | Report an error | Send to a friend
 
SparkNotes Study Cards boil down Organic Chemistry into digestible tidbits, making studying easier.
More...
 
We'll help you raise your score on the SAT II Physics test!
More...
 
 
Go to top