A CD has a diameter of 12.0 cm and is rotating at an angular velocity of 10.0 rad/sec.If the CD has a constant angular deceleration of -0.5 rad/sec²,then the angular velocity of the CD after 3.0 sec is A) 5.7 rad/s. B) 6.2 rad/s. C) 7.9 rad/s. D) 8.5 rad/s. E) 9.8 rad/s.

Question

Quizplus · Accepted Answer

The angular velocity after 3 seconds can be calculated using the formula: final angular velocity = initial angular velocity + (angular acceleration * time). Here, it is 10 rad/s + (-0.5 rad/s² * 3 s) = 8.5 rad/s.

A CD Has a Diameter of 12