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Posted by on Thursday, December 13, 2012 at 10:23pm.

A machine part rotates at an angular speed
of 0.77 rad/s; its speed is then increased to
1.76 rad/s using an angular acceleration of
0.29 rad/s
2
.
Find the angle through which the part rotates before reaching this final speed.
Answer in units of rad

  • physics - , Friday, December 14, 2012 at 12:41am

    wf^2 = wi^2 + 2 (alpha) * (angle of rotation (delta theta))

    delta theta = (1.76^2 - 0.77^2) / 2*0.29

    delta theta = 2.36

    (check me on my math))

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