Solution 3.1

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Current revision (09:23, 17 March 2010) (edit) (undo)
 
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as the forces on the sphere are in equilibrium.
as the forces on the sphere are in equilibrium.
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<math>T=mg=20\times 9.8=196\ \text{N}</math>
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<math>T=mg=20\times 9\textrm{.}8=196\ \text{N}</math>

Current revision

Image:2.1.gif

If \displaystyle T is the tension in the cable then

\displaystyle \uparrow \displaystyle T-mg=0 as the forces on the sphere are in equilibrium.

\displaystyle T=mg=20\times 9\textrm{.}8=196\ \text{N}