Question

You lift a suit case from the floor and keep it on a table. The work done by you on the suiitcase does not depend on.

• A. the path taken by the suitcase.
• B. the time taken by you in doing work.
• C. weight of the suitcase.
• D. initial and final position.

Answer 1

Answer: (A), (B)

The correct options are
A the time taken by you in doing work.
B the path taken by the suitcase.

Gravitational field is a conservative field, that is, work done in moving from one point to another doesn't depend upon the path chosen.
The amount of work is independent of time taken, its a dot product of force and distance but depends on the weight of the body and the initial and finals positions.
Options A and B.