A solid metal cylinder stands on a horizontal surface, as shown.
The cylinder has length x and cross-sectional area A. The cylinder exerts a pressure p on the surface. The acceleration of free fall is g.
Which expression gives the density of the metal of the cylinder?
1 )
$\frac{{gx}}{p}$
$\frac{p}{{gx}}$
3 )
$\frac{{gx}}{{pA}}$
4 )
$\frac{{pA}}{{gx}}$
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