Question

a tank 5 m high is filled with water upto 3 m then is filled to the top with oil of density 0.85g/cm2. what is the pressure at the bottom of the tank if gravity is taken as 10m/s2?

Answer 1

Answer:

Explanation:

Given ,A tank has height =5m

(taking g=9.8m/s square).

In case of water,

height= 3m

density= 1000 GM/cubic cm

then pressure= force/Area.

f = v x d x g.

f = (l x b x 3) x 1000 x 9.8

f = l x b x 29400.

Area= l x b

pressure= l x b x 29400/ l x b

pressure of water on tank= 29400 pa.

In case of oil,

height= 2m

density= 850 GM/cubic cm

then pressure= force/Area.

f = v x d x g.

294 f = (l x b x 2) x 850 x 9.8

f = l x b x 16660

Area= l x b

pressure= l x b x 16660/ l x b

pressure of oil on tank= 16660pa.

pressure of oil + pressure of water.

16660 + 29400

= 46060 pa