Question
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.2 . A second student tosses a 1.1 mass with a speed of 3.0 to the student on the stool, who catches it at a distance of 0.45 from the axis of rotation. What is the final rotational speed of the stool, student and mass?
Answers
the I for the added mass is mr^2. The w for the added mass is v/r
so do this, add the two momentums and set them equal to (Itotal)Wfinal
and solve for wfinal
so do this, add the two momentums and set them equal to (Itotal)Wfinal
and solve for wfinal