2) CDs and DVDs turn with a variable w that keeps the tangential speed v. constant.

2) CDs and DVDs turn with a variable w that keeps the tangential speed v. constant. Find the angular speed w that a CD must have in order to give it a linear speed v. = 1.25 m/s when the laser beam shines
on the disk
(a) at 2.50 cm from its center, and
(b) at 6.00 cm from its center.