Question

Two identical balls, A and B, of mass 2 kg each are raised from the ground to a height of 2 m. Ball A is raised along a straight vertical path, whereas Ball B is raised along a zigzag path. Choose the correct statement.

• A. The change in the potential energy of Ball A is equal to 4g J.
• B. The change in the potential energy of Ball B is more than that of Ball A.
• C. Both options A and C are correct.
• D. The change in the potential energy of Ball A equals g J.

Answer 1

The correct option is A The change in the potential energy of Ball A is equal to 4g J.

The change in the gravitational potential energy of a body depends on the change in its height from the ground. It is independent of the path taken by an object to reach the final height.