__________ of a two-particle system depends only on the separation between the two particles. The most appropriate choice for the blank space in the above sentence is:
1. kinetic energy
2. total mechanical energy
3. potential energy
4. total energy
You lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase does not depend on:
a. | the path is taken by the suitcase |
b. | the time is taken by you in doing so |
c. | the weight of the suitcase |
d. | your weight |
Choose the correct option:
1. | (a), (b) and (d) |
2. | (b), (c) and (d) |
3. | (a), (c) and (d) |
4. | all of these |