MCQ
The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of a block along the table, which is proportional to the resultant normal force given by the table. Forces F1 and F2 act at the same angle θ with the horizontal and both are just initiating the sliding motion of the block along the table. Force F1 is a pulling force while the force F2 is a pushing force. F2 > F1, because
- ✓Component of F2 adds up to weight to increase the normal reaction.
- BComponent of F1 adds up to weight to increase the normal reaction.
- CComponent of F2 adds up to the opposing force.
- DComponent of F1 adds up to the opposing force.
