Question

if a block of wood is floating in a river water, then the apparent weight of the floating block is

• A. equal to the weight of the displaced water
• B. zero.
• C. greater than the weight of the displaced water
• D. equal to the actual weight of the block

Answer 1

The correct option is B zero.

Apparent weight in calculated as

Apparent weight$=$(weight of body)$-$(Buoyancy force)

Where

weight of body$=$(mass of body)$\times$(Gravitational force)

Buoyancy force$=$weight of fluid displaced

for the floating body:-

weight of body$=$Buoyancy force

$\therefore$ The body floating and

apparent weight equals to zero.

$\therefore$ Answer is B.