A steel pipe runs vertically from a wellhead on the floor of the ocean to a poin

Question

A steel pipe runs vertically from a wellhead on the floor of the ocean to a point 10m above the surface. The pipe is filled with drilling mud having a density of 2.5 kg/L . What is the pressure on the pipe 200m below the surface of the water? At that point, what is the force on 1 cm2 of the pipe wall? (Density of seawater = 1.03 kg/L)

P =P0 + ?1gh1 +?2gh2

= 105 + (2.5*10*9.8 ) + ( 1.03*100*9.8) = 1.2263 x 104 N/m2

I Already answer the first question. I just need the second one answered.

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Explanation / Answer

force on 1cm2 of pipe wall= p.A where A=10power-2

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