Physics, 28.08.2020 21:01 mstrish71oteauw

A roofer needs to get shingles onto a roof. Pulling the shingles up manually uses 1,549 N or force. The roofer decides to use a system of pulleys. Using the pulleys, 446 N are required to lift the shingles. What is the mechanical advantage of the system of pulleys?

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A roofer needs to get shingles onto a roof. Pulling the shingles up manually uses 1,549 N or force....

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