Question

A disc of moment of inertia 2 kg m² revolving with 8 radian/sec, is placed on another disc of moment of inertia 4 kg m² revolving 4 radian/sec. What is the angular frequency of composite disc?

• A. \(\frac {16}{3}\ \text {rad/sec}\)
• B. \(\frac {16}{5}\ \text {rad/sec}\)
• C. \(4\ \text {rad/sec}\)
• D. \(\frac {3}{16}\ \text {rad/sec}\)

Answer 1

The Correct Option is A

The correct option is (A): \(\frac {16}{3}\ \text {rad/sec}\).