I messed up the original thread in terms of information, so I made a new better one. Ok here goes:
I have a problem where a right circular cylinder with diameter .115meter and a mass of .03kg is rotating at 300 rev per min. Now an Ant which weighs .01kg collides with the rotating cylinder and lands on the rim of the cylinder. The Ant is treated as a point mass.
So I am looking for the final frequency in rev/min of the cylinder/Ant system? Which is part a of the problem?
This is the farthest I got, and I wanted to know if my work is good so far and how to use the angular momentum to get the final frequency?
I(inertia)=mr^2 this is for point mass
w=v/r I used v=300 rev/min(not sure about this)
angular momentum is L=I*w
The Attempt at a Solution
I=(.01kg)*(.0575m^2), so I=33.06*10^-6 inertia for the point mass after it landed on the cylinder
w=300/(.0575m), w=5.21k rad/sec(this part I am not sure about)
L= (33.06*10^-6 )*(5.21k rad/sec)