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Boom Lift

A 10 -m boom lifts materials onto the roof in need of repair.?

Determine the exact vertical displacement of the end of the boom when the operator lowers it from 60 degrees to 30 degrees. Vertical displacement is v1-v2

v1 - v2 = (10 x sin 60°) - (10 x sin 30°) = 3.66 m

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