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## Homework Statement

An above-ground backyard swimming pool is shaped like a large hockey puck, with a circular bottom and a vertical wall forming its perimeter. The diameter of the pool is 5.2m and its depth is 1.4m. Find the total outward force exerted on the vertical wall of the pool.

Density of air: 1.29 kg/mcubed

Density of water: 1000 km/mcubed

Answer: (back of book) 160kN

## Homework Equations

Buoyant Force = density of external fluid x gravity x volume

Volume = radius squared x pi x height

## The Attempt at a Solution

Volume = (5.2/2)squared (pi) (1.4) = 29.732 mcubed

Buoyant Force = (1.29) (9.8) (29.732) = 375.872 N

Attempt 2, using water's density

Buoyant Force= (1000) (9.8) (29.732) = 291373.922 N