Constant angular acceleration problem

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Homework Help Overview

The discussion revolves around a problem involving constant angular acceleration, specifically focusing on the time taken for a drive to complete its first revolution given that it took 0.480 seconds for the second revolution. Participants are exploring the relationships between angular displacement, angular velocity, and angular acceleration.

Discussion Character

  • Mixed

Approaches and Questions Raised

  • Participants are attempting to apply kinematic equations related to angular motion to find the time for the first revolution and the angular acceleration. There are discussions on the appropriateness of certain formulas and the need for additional information to solve the problem.

Discussion Status

Some participants have provided hints and suggested formulas, while others express confusion about the variables and the setup of the equations. There is an ongoing exploration of different approaches to find the angular acceleration and the time for the first revolution, but no consensus has been reached.

Contextual Notes

Participants note that the problem lacks sufficient information and clarity, particularly regarding the initial conditions and the complete question. There is also mention of the challenge of solving for time and acceleration simultaneously within the equations presented.

  • #31
how to Divide these two equations to get a cancel ?
 
Last edited:
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  • #32
2pi/4pi = 1/2*a*t^2/1/2a*(t+0.48)^2
1/2 = t^2/(t+0.48)^2
solve for t
 
  • #33
that give t=0.48
which it like not solving anything :(
 
  • #34
Cross multiplying the above expression we get (t + 0.48 )^2 = 2t^2
Taking sqrt. on both side we get t + 0.48 = 1.41t or 0.41t = 0.48 or t = 0.48/0.41
 
  • #35
woot u were right
LOL stupid me
thank you
 

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