A student sits on a rotating stool holding two 5 kg objects. When his arms are extended horizontally, the objects are 1.
Posted: Mon Jul 18, 2022 6:28 am
A student sits on a rotating stool holding two 5 kg objects.When his arms are extended horizontally, the objects are 1.1 m fromthe axis of rotation, and he rotates with angular speed of 0.73rad/sec. The moment of inertia of the student plus the stool is 5kg m2 and is assumed to be constant. The student then pulls theobjects horizontally to a radius 0.34 m from the rotation axis. ωiωf (a) (b) Calculate the final angular speed of the student. Answerin units of rad/s. Calculate the change in kinetic energy ofthe system. Answer in units of J