Mass M, Dlameter LK
Shown in the figure is 1.2kg disc with a radius of 0.8 meters that can pivot about a horizontal, frictionless pin through its edge. The disc is released from rest with its center at the same height as the pivot point. Calculate the final angular speed of the disc about the axis of rotation when it gets to the bottom of its swing.
Enter your answer in units of radians per second rounding to two decimal places.
Your Answer:
Answer
Hide hint for Question 4
This is an energy problem, converting potential energy of gravity to kinetic energy of rotation. Carefully determine the change in height for the COM of the disc. The parallel axis theorem must be used here.
Pin
Circular disc
Mass M, Diameter 2R
Shown in the figure is 1.2 kg disc with a radius of 0.8 meters that can pivot about a horizontal, frictionless pin through its edge. The disc is released from rest with its center at the same height as the pivot point. Calculate the final angular speed of the disc about the axis of rotation when it gets to the bottom of its swing. Enter your answer in units of radians per second rounding to two decimal places
Your Answer:
Answer
Hide hint for Question 4
This is an energy problem,converting potential energy of gravity to kinetic energy of rotation.Carefully determine the change in height for the COM of the disc.The parallel axis theorem must be used here