Solution 2.3b

From Mechanics

(Difference between revisions)
Jump to: navigation, search
(New page: The lift force <math>F</math> must balance the weight <math>W</math>, that is <math>F-W=0</math> But <math>W=mg=800\times 9.8=7840\ \text{N}</math> Which gives <math>F=W=840\ \text{N...)
Current revision (17:03, 26 March 2011) (edit) (undo)
 
(One intermediate revision not shown.)
Line 6: Line 6:
<math>F-W=0</math>
<math>F-W=0</math>
-
But <math>W=mg=800\times 9.8=7840\ \text{N}</math>
+
But <math>W=mg=800\times 9\textrm{.}8=7840\ \text{N}</math>
Which gives
Which gives
-
<math>F=W=840\ \text{N}</math>
+
<math>F=W=7840\ \text{N}</math>

Current revision

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

\displaystyle F-W=0

But \displaystyle W=mg=800\times 9\textrm{.}8=7840\ \text{N}

Which gives \displaystyle F=W=7840\ \text{N}

Retrieved from "http://wiki.sommarmatte.se/wikis/2009/bridgecoursemechanics/index.php/Solution_2.3b"