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Question:

Physics torque questionPlease help)?

The crane big blue has its boom extended 100 m at an angle of 30 degrees from the horizontal?it needs to pick up a 50000 kg section of the roof of a buildingThe max torque it can handle is 40 million NmFrom this position can it lift this roof piece? show work

Answer:

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50,000 x 9.8 490,000NCos 30 .8660.8660 x 100 86.6m is the torque arm of the boom490,000 x 86.6 42,434,000N/mIt is too heavy for the crane.

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