a 40kg duck walks from the outside to the inside of a rotating circular table of mass 100kg. if the rotational intertia of the table is 250kg*m^2 and the duck moves from a radius of 2.5m to 1.5m, find the final angular speed of the table if it rotates at 2.0rad/sec at the moment the duck begins to move.
THANKS! I'm studying for a test and i cant do this question
The Attempt at a Solution
what i did:
L = 250kg * m^2
Wf = ?
Wi = 2 rad /sec
r = 1.5 m
i dont know what to do from here