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elli6687

  • 3 years ago

A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.5 rad/s^2 for 7.1s and is then brought to rest with a constant angular acceleration of -4.1rad/s^2

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  1. elli6687
    • 3 years ago
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    what is the total elapsed time?

  2. Algebraic!
    • 3 years ago
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    \[\omega = \alpha t \] where alpha = 2.5 and t = 7.1 find omega. use in: \[-\omega = -4.1t \] find t total time is 7.1 seconds + t

  3. Fellowroot
    • 3 years ago
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  4. Algebraic!
    • 3 years ago
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    @Fellowroot why do you take a root to find t?

  5. Algebraic!
    • 3 years ago
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    the equation doesn't contain t^2

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