Rope Bag
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| The Outdoors Advice Blog |
physics: explain why more force is needed as you pull a rope, that has a bag on, higher?
a bear sling is used in some national parks for placing backpackers' food out of the reach of bears. Explain why the force needed to pull the backpack up increases as the backpack gets higher. Is it possible to pull the rope hard enough so that it doesn't sag at all?
the force increases because gravitational potential energy increases. [gpe = mgh (h=height)]
