please help in vectors
@Compassionate
@wolf1728
The answer to question 8 is 4 infinitely large
how
u can use snapshots to explain
@kropot72
in order to lift the weight there must be a vertical force. When the rope sags to make a V shape then part of the tension in th erope can be resolved to a vertical force. As the V gets less (the angle gets shallower) the tension required to make th esame vwertical resolved component gets bigger. IF the rope was horizontal then there is no vertical force and hence the rope cannot reach horizontal. The 'infinitely large' is the limit as the angle gets less..
can you show any mathematical calculations to express &also with the figure you can use snapshots for showing the drawn figure @MrNood
|dw:1410878815761:dw| Upward force due to tension = 2T sin(theta) For equilibrium = mg mg= 2T sin(theta) so T= mg/(2sin(theta)) If as theta > 0 sin theta>0 so as theta > 0 what hapeens to T?
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