Angular velocity, linear acceleration?

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Homework Help Overview

The discussion revolves around a physics problem involving a rod swinging around a pivot, focusing on the concepts of angular velocity and linear acceleration. The scenario describes the rod's initial conditions and seeks to determine the linear acceleration of the rod's free end upon release.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss using torque to find angular acceleration and then relate it to linear acceleration. Some express uncertainty about which equations are necessary for solving the problem.

Discussion Status

The conversation includes attempts to clarify the approach to the problem, with some participants suggesting the need to gather relevant equations. There is an emphasis on the importance of individual effort in the problem-solving process.

Contextual Notes

Participants note the requirement to reference textbooks for equations, indicating a structured approach to the homework assignment. There is an underlying expectation for participants to engage actively with the material rather than receive direct solutions.

silentshimmer
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A rod of mass M, length L, and uniform density and thickness swings around a frictionless pivot at one end of the rod; the other end is free. The rod is held at angle θ below the horizontal and then released with no initial angular velocity, ω0=0. Find the linear acceleration a of the rod's free end immediately after the rod is released.
 
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silentshimmer said:
A rod of mass M, length L, and uniform density and thickness swings around a frictionless pivot at one end of the rod; the other end is free. The rod is held at angle θ below the horizontal and then released with no initial angular velocity, ω0=0. Find the linear acceleration a of the rod's free end immediately after the rod is released.

Use torque to find the angular acceleration (gravity will act at the center of gravity of the object). Then use that to find the linear acceleration at the extremity.
 
what equations do i need?
 
silentshimmer said:
what equations do i need?

Well, you should look them up in your textbook. We can help people with assignments but they have to do most of the work and the first thing is to gather the necessary equations and take a stab at the problem.
 

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