एक ठोस बेलन (cylinder) के अक्ष के परितः एक समय अंतराल t के लिए एक बल आघूर्ण τ लगाया जाता है। यदि बेलन का द्रव्यमान और त्रिज्या क्रमशः M और R हैं, तो विराम अवस्था से उत्पन्न कोणीय वेग क्या होगा?

The moment of inertia of a rigid body depends on:

Consider a flywheel of mass 10 kg, uniform thickness 15 mm, and radius 100 mm. If it rotates at 300 RPM, then the kinetic energy of the flywheel (in Joules) is:

Two small balls with masses m and 2m are attached to both ends of a rigid rod of length d and negligible mass. If the angular momentum of this system is L about an axis passing through its centre of mass and perpendicular to the rod, then the angular velocity of the system is: