MCQOPTIONS
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| 1. |
If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint |
| A. | one of the forces must be zero |
| B. | each force must be zero |
| C. | forces must be equal and of the same sign |
| D. | forces must be equal in magnitude but opposite in sign. |
| Answer» C. forces must be equal and of the same sign | |