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| Q.77 | Which of the following statements about equilibrium is correct? | |
| Ans | 1. Summation of all the forces acting in one direction must not be zero. | |
| 2. Summation of all the forces acting in one direction must be zero. | ||
| 3. Summation of all the forces acting in all the possible directions must be non-zero. | ||
| 4. Summation of all the forces acting in all the possible directions must be zero. |
Correct Ans Provided: 4
