A crane is equilibrium when it holds a load of 50 kn on its cable 15 meters from the pivot. The crane uses a large block of concrete weighing 90kn to balance the load. How far should the concrete block be placed from the pivot
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The crane uses a large block of concrete weighing 90kn to balance the load. How far should the concrete block be placed from the pivot.
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Answer:
8.5 m
Explanation:
MA (Mechanical Advantage) = W/F = Lf/Lw
= 50/90 = Lf/15
= 50 x 15 = 90 x Lf
= 750 = 90 x Lf
= Lf = 750/90
= 8.5 m
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