Posted by shivankar on Friday, August 3, 2012 at 1:08pm.
13. The constant angular acceleration of a pulley is 4 rad/s2 and its angular speed its 3 rad/s. Determine the radius of the pulley if the total acceleration of a print on the rim of the pulley is 3.5m/s2.

dynamics  drwls, Friday, August 3, 2012 at 8:41pm
I assume that you mean a point on the rim, not a print. The radial and tangential acceleration components are perpendicular. Therefore
(3.5)^2 = (4 R)^2 + [ 3^2*R]^2
The first term on the right is the square of the tangential acceleration. The second term is the square of the centripetal acceleration.
Solve for R.

dynamics  ajay, Sunday, August 5, 2012 at 10:20pm
13. The constant angular acceleration of a pulley is 4 rad/s2 and its angular speed its 3 rad/s. Determine the radius of the pulley if the total acceleration of a print on the rim of the pulley is 3.5m/s2.
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