Constant angular acceleration problem

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The discussion revolves around a physics problem involving constant angular acceleration, specifically calculating the time taken for the first complete revolution and determining the angular acceleration. Participants emphasize the need for complete information and proper equations to solve the problem, with suggestions to find angular acceleration first. They discuss using formulas related to angular displacement, velocity, and time, while also addressing confusion over calculations and variable definitions. Ultimately, one user successfully derives the time for the first revolution and confirms the approach to solving for angular acceleration. The conversation highlights the importance of clear problem statements and systematic problem-solving techniques in physics.
  • #31
how to Divide these two equations to get a cancel ?
 
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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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