Physics

To solve this problem, we follow these steps:

Find initial gravitational potential energy:

The ball is initially at a height above the table.

The gravitational potential energy relative to the table (reference point) is , where is the mass of the ball, is the acceleration due to gravity.

Find final gravitational potential energy:

When the ball reaches the ground, it is at a height relative to the table (since it is below the table).

The gravitational potential energy relative to the table is .

Change in gravitational potential energy:

The change in gravitational potential energy is given by

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