Just an easy problem of physics

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SUMMARY

The discussion centers on calculating the minimum force required to pull a block weighing 5N without breaking a rope that can withstand a maximum tension of 20N. By applying Newton's second law, the net force acting on the block must be equal to the weight of the block when in equilibrium. Therefore, the minimum force exerted must be at least 5N, ensuring that the total tension in the rope does not exceed its limit of 20N.

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NeoPhoenix
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If we want to pull a block with a weight of 5N attached to a rope that is just able to resist 20N. What is the minimum force that we need to exert in order to not break the rope? xD
 
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Draw a free-body diagram on the block, write out Newton's second law, and solve!
 

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