A tank in the shape of an inverted right circular cone has height 4 meters and radius 2 meters. It is filled with 3 meters of hot chocolate. Find the work required to empty the tank by pumping the hot chocolate over the top of the tank. The density of hot chocolate is δ=1020 kg/m3.δ=1020 kg/m3. Your answer must include the correct units.

The required work to empty the the tank is 247401 J.

Explanation:

Given that,

A tank is in the shape of right circular cone.

The radius of the tank= 2 m

The height of the tank = 4 m

The relation between the radius and the height is

Let h be the height of hot of chocolate any time t.

The volume of a cone is

The volume of the chocolate is

The mass of the  chocolate is(M)= Density × Volume

                                                      Kg

                                                      kg

Work done = Force × displacement

                  = Mass × acceleration×displacement

Here acceleration= acceleration due to gravity = 9.8 m/s²

The displacement when the hot chocolate level is h is = (4-h)                  

Work done (dw)

Work done = W

                        =247401 J

The required work to empty the the tank is 247401 J.

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