NCERT Example 6.12 - System of Particles and Rotational Motion

Question: A 20 kg flywheel of radius 0.20 m is pulled by a 25 N cord. Relate work, angular acceleration, and rotational energy.

Answer: Use **tau=I alpha** and **tau theta=1/2 I omega²**.

Full step-by-step NCERT solution with diagrams on Something by Zero.