Question

Ball made of wood and ball made of aluminum, of the same radius are placed into reservoir with water. Aluminum ball after sinking rests at the bottom, wooden ball floats. Which ball experiences greater buoyancy force? (14.4)

Answer 1

Answer:Aluminium

Step-by-step explanation:

Given

Aluminium ball sinks after placing inside the water while wooden block floats.

Buoyancy on a body is given by

`volume\ inside\ the\ water * density\ of\ fluid* g`

here
`\rho _(Al)>\rho _(water)`

thus aluminium ball sinks

but for

`\rho _(wood)<\rho _(water)`

only a part of wood is under the water i.e. not whole volume is not under water therefore net buoyancy is less in case of wood