A flywheel of radiiis 10 cm mounted so as to rotate about a horizontal axis through its centre. A string of negligible mass wrapped round its' circumference carries' a mass of 200 gm attached to its free end, when let fall the mass descends through 100 cm is 5 s. Calculate the angular acceleration and the moment of inertia of the flywheel.

Explanation

To solve the problem step by step, we will follow the physics principles involved in circular motion and kinematics.

### Step 1: Determine the acceleration of the falling mass
We know that the mass descends a distance of 100 cm (1 m) in 5 seconds. We can use the kinematic equation:

\[ s = ut + \frac{1}{2} a t^2 \]

Where:
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