Question

What is apparent weight of the floating block, when a block of wood is floating in a lake?

Answer 1

When an object is immersed in a fluid, the object experiences buoyant force in upward direction and weight of object in downward direction.

so, the apparent weight of the floating block is equal to zero because the weight of the block acting vertically downwards is balanced by buoyant force acting upwards .

Answer 2

Hey!


When we immerse any object in liquid, an upward force called as upthrust acts on the object, and simultaneously the weight of the body acts downward.

So when we immerse a block in water and it floats, then the apparent weight of the block is equal to zero because the weight of the object acting vertically downwards is balanced the upward force called as upthrust.

Hope it helps...!!!