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July 23, 2014

July 23, 2014

Posted by **Sam** on Tuesday, October 23, 2012 at 8:38am.

- Physics -
**Jennifer**, Tuesday, October 23, 2012 at 10:25amw = w0 + a*t

theta = w0*t + 1/2*a*t^2

where w is the angular speed, w0 is the initial angular speed, and a is the angular acceleration, and theta is the angle turned in radians, so

3.14*10^4 = 1.2*10^4 + a *t

1.92*10^4 = 1.2*10^4*t + .5*a*t^2

Solve this system of equations using algebra for a and t

Then, use

7.85*10^4 = 1.2*10^4 + a*t,

where you know a from before, and you now solve for time

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