Purchase Solution

Dynamics Problem - Torque and Angular Acceleration

Not what you're looking for?

Ask Custom Question

A slender rod of mass Mr has a disk of mass Mo fastened to it at its end. It is pinned at 0 - a "frictionless" pin. The circular frequency in rad/s of the system for small oscillations is what?

*Please see attachment for diagram, figures and multiple choice answers; please show your work.

Attachments
Purchase this Solution
Solution Summary

This solution is provided in 150 words. It uses torque, angular acceleration and simple harmonic motion to find the angular frequency squared.

Solution Preview

If the system is displaced by small angle 'theta' from the vertical, the torque about the fastened end,
Mr*g*sin(theta)*(l/2) + Mo*g*sin(theta)*l = - (Ir+Mr*(l/2)^2 + Io + ...

Solution provided by:
Amrit Lal Ahuja, PhD (IP)
Education
  • BEng, Allahabad University, India
  • MSc , Pune University, India
  • PhD (IP), Pune University, India
Recent Feedback
  • " In question 2, you incorrectly add in the $3.00 dividend that was just paid to determine the value of the stock price using the dividend discount model. In question 4 response, it should have also been recognized that dividend discount models are not useful if any of the parameters used in the model are inaccurate. "
  • "feedback: fail to recognize the operating cash flow will not begin until the end of year 3."
  • "Answer was correct"
  • "Great thanks"
  • "Perfect solution..thank you"
Purchase this Solution
Free BrainMass Quizzes
Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Basic Physics

This quiz will test your knowledge about basic Physics.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

The Moon

Test your knowledge of moon phases and movement.

View More Free Quizzes
Related BrainMass Solutions

  • Dynamics Problem - Torque, Acceleration, and Angular Velocity

    35544 Dynamics Problem - Torque, Acceleration, and Angular Velocity An electric motor is running at 1200rpm when its power is cut off for 40 seconds, then turned back on.

  • Rotational Dynamics and Net Torque

    It uses revolutions to calculate radius, and then calculates angular acceleration and torque.

  • Moment of inertia: Force of fish on the line; how much line unwinds?

    You have to use the equivalent of Newton's second law for rotational dynamics in this question: Force x arm = Torque = I(moment of Inertia) x (angular acceleration) Here there are two sources of torque, one is the fish pulling the line by applying

  • Rotational Dynamics and Tangential Acceleration

    It uses brief calculations for torque and angular acceleration to find the tangential acceleration.

  • A simple torque question

    If the platform starts from rest and assuming that a constant torque is applied, then an uniform angular acceleration is obtained, denoted as .

  • Determining Angular Acceleration Example

    After calculating the net torque it is clear that, the net torque = 76 Nm. This must be equal to the Moment of inertia times the angular acceleration. Please see the attached document for the correct work.

  • Rotational Dynamics

    acceleration (α) Substituting values: - 0.3 = 0.027α α = - 0.3/0.027 = - 11.11 rad/s2 Initial frequency of rotation of the wheel = f = 900 rpm or 900/60 = 15 rps Initial angular velocity ω0 = 2Пf = 2x3.14x15 = 94.2 rad/sec Final angular

  • A Uniform, Hollow, Cylindrical Spool

    The total torque is teh spool's moment of inertia times teh angular acceleration. 5. The total torque is the sum of the friction torque and the torque due to the tension - Be careful with the signs!

  • Centripetal Acceleration Rotor

    The solution determines the current angular speed in rad/sec and angular acceleration.

View More Related Solutions