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Solution 2.3b

From Mechanics

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Current revision (17:03, 26 March 2011) (edit) (undo)
 
Line 9: Line 9:
Which gives
Which gives
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<math>F=W=840\ \text{N}</math>
+
<math>F=W=7840\ \text{N}</math>

Current revision

The lift force F must balance the weight W, that is

F−W=0

But W=mg=8009.8=7840 N

Which gives F=W=7840 N

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