A bicycle wheel is rotating with an angular velocity of 15 rad/s. The brakes are applied and the wheel comes to a stop. During the braking process, the wheel rotates an angular distance of 15 radians. What is the angular acceleration of the wheel?
A car is speeding down the freeway. The car's tires have an angular velocity of 50 rad/s. As the car accelerates, the wheels have an angular acceleration of 0.8 rad/s². What is the final angular velocity of the wheels after the car has accelerated for 10 seconds?
A compact disc has a radius of 6 cm. As the cd player powers up, the disc has an angular acceleration of 1.2 rad/s². The disc is at full speed after 3 seconds.
a. Determine the angular velocity of the disc once it is at full speed.
A mark is made with a pen on the edge of the disc.
b. How many radians will the mark have traveled while powering up from rest to full speed?
c. How far in meters will the mark have traveled while powering up from rest to full speed?