12. Rotational Kinematics
Rotational Velocity & Acceleration
15PRACTICE PROBLEM
A circular disk of diameter 15cm is attached to an electric motor. The disk has a coupling screw located 7cm from the center of the disk. The disk is accelerated at 1400 rad/s2 in a time t = 1.5s and allowed to spin at uniform angular velocity for 1s. Determine the number of rotations made by the disk.
A circular disk of diameter 15cm is attached to an electric motor. The disk has a coupling screw located 7cm from the center of the disk. The disk is accelerated at 1400 rad/s2 in a time t = 1.5s and allowed to spin at uniform angular velocity for 1s. Determine the number of rotations made by the disk.