Solution of the D2 version 22 Dievskaya VA Malyshev IA

Solution of the D2 version 22 Dievskaya VA Malyshev IA

Solution of the D2 B22. After switching off the gas turbine rotates with angular velocity w0 = 6 rad / s, is hampered by the aerodynamic drag, which currently M1 = 15w2, and frictional forces in the bearings, which are currently M2 = 130 Nm. The moment of inertia about the axis of rotation of the turbine is equal to J = 120 kgm2. Determine the number of revolutions of the turbine after the start of braking until standstill.

Additional information:

Right after the payment you receive a link to the archive with the solution of the problem in theoretical mechanics A2 B22 (condition 22) in the test book "theoretical mechanics" Dievskaya VA Malyshev IA 2009 for university students.
The decision is decorated in a format word (typed or hand-written decision in a Word), packed to the archive zip (open on any PC).

After checking the solutions I would be very grateful if you leave your positive feedback.