A 50 kg disk is spinning about a vertical axis of rotation with a radius of 2.3 m and a rotational inertia of 0.15 mr2 and it has an initial angular velocity of 40 rad/s. A 10 kg mass falls on to the disk and sticks to it at 0.6 m away from the axis of rotation. The rotational inertia of the mass is mr2. Calculate the angular velocity of the disk-mass system after the collision.

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.