Physics
A thin uniform rod has a length of .25 m and rotates in a circle on a frictionless tabletop. The axis of rotation is perpendicular ot the length of the rod at one of its ends. The rod has an angular velocity of 0.32 rad/s and a moment of inertia of 0.0011 kg/m^2. A bug standing on the axis decides to crawl out to the other end of the rod.
(a) When the bug (mass = 0.0042 kg) reaches the other end, what is the new angular velocity of the rod?
(b) Is kinetic energy conserved? Why or why not?
If this is the practice test, I'm screwed tomorrow.
(a) When the bug (mass = 0.0042 kg) reaches the other end, what is the new angular velocity of the rod?
(b) Is kinetic energy conserved? Why or why not?
If this is the practice test, I'm screwed tomorrow.