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April 19, 2014

April 19, 2014

Posted by **Hannah** on Tuesday, June 5, 2012 at 10:58am.

Do I need to convert revolutions to radians first?

- Physics(Please respond) -
**Elena**, Tuesday, June 5, 2012 at 11:31amEquations for decelerated motion are

ω=ωₒ - ε•t,

φ = ωₒ•t - ε•t²/2.

Since ω =0, φ = 2•π•N, where N =17.6 rev.

these equatuions are

0=ωₒ-ε•t, …………………… (1)

2•π•N = ωₒ•t - ε•t²/2 …………(2)

From (1)

ε = ωₒ/t……………………… (3)

Plug it in (2) and obtain

t= 4•π•N/ ωₒ.

Then determine angular acceleration using (3).

- Physics(Please respond) -
**Hannah**, Tuesday, June 5, 2012 at 12:19pmso first I have to do equation 2? So

2*pi*17.6 = I am not sure what wo is. Would it be the 26.0?

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