Help -Pivoting Rod about center- Me

In summary, the conversation discusses a problem involving a uniform rod pivoted at its center with a weight attached to one end. The system is released from rest at a certain angle and the question is asked about finding the angular acceleration and velocity. The person has been working on it for 3 hours and asks for a step by step explanation. They are reminded to consider the total rotational inertia.
  • #1
ano327
1
0
Help! ---Pivoting Rod about center---- Please Help Me!

A uniform rod is pivoted at its center and a small weight of mass M = 4.61 kg is rigidly attached to one end. The rod has length L = 6.4 m and mass mrod = 12.1 kg. The system is released from rest at the theta = 37° angle (relative to the horizontal through the pivot point).

I NEED TO FIND The angular acceleration just after it is released and the angular velocity when the rod is vertical?

I have been working on this for the last 3 hours and I cannot get the correct answer... I would greatly appreciate a step by step explanation!

Thanks in advance!
 
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  • #2
1] post in homework section
2] show your work
 
  • #3
Have you considered the total rotational inertia of the rod & mass?
 

FAQ: Help -Pivoting Rod about center- Me

What is a pivoting rod?

A pivoting rod is a type of mechanical component that is used to rotate or pivot objects around a fixed center point.

How does a pivoting rod work?

A pivoting rod typically consists of a long, thin rod with a pivot point in the center. When force is applied to one end of the rod, it causes the other end to rotate around the pivot point.

What are the applications of a pivoting rod?

Pivoting rods are commonly used in various machines and devices, such as door hinges, steering wheels, and balance scales. They are also used in engineering and construction projects to provide stability and movement.

What materials are used to make a pivoting rod?

Pivoting rods can be made from a variety of materials, including metal, plastic, and wood. The choice of material depends on the specific application and the desired strength and durability of the rod.

Are there different types of pivoting rods?

Yes, there are several types of pivoting rods, such as ball joints, hinge pins, and swivel joints. Each type is designed for a specific purpose and offers different degrees of rotation and movement.

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