The volume of a cone of height h and base radius r is V = πr2h/3. A jar(adsbygoogle = window.adsbygoogle || []).push({});

in the shape of a cone of height 25 cm has a base with a radius equal to 15 cm.

The jar is filled with water. Then its lid (the base of the cone) is screwed on and

the jar is turned over so its lid is horizontal. (a) Find the volume and weight of the

water in the jar. (b) Assuming the pressure inside the jar at the top of the cone is

equal to 1 atm, find the excess force exerted by the water on the base of the jar.

Explain how this force can be greater than the weight of the water in the jar.

I don't understand part b.

Do they want me to find Fexcess= Fg-1atm/areaOfBase ?

I get for part a:

V=5.9 Liters

Fg=58N

Thank you.

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# Fluids( Pressure)

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