Question

An anchor with a density of 700 lb/ft3 tied to a rope is submerged in water (but is not touching the bottom). It has a volume of 2.8 ft3. What is the buoyancy force on that object?

Answer 1

Step-by-step explanation:

Given

Density of anchor
`\rho _a=700\ lb/ft^3`

Volume of anchor
`V=2.8\ ft^3`

Density of water
`\rho _w=62.4\ lb\ft^3`

Buoyancy force on submerged object is given by

`F_B=\rho _W* V* g`

`F_B=62.4* 2.8* 32.2=5625.98\approx 5626\ approx lbf`