First slide

Fluid statics

Question

A person is carrying a bucket of water in one hand and a block in the other hand. After putting the block in the bucket in which the block floats, the person carries :

Easy

A

more weight than before
B

less weight than before
C

same weight as before
D

it cannot be decided

Solution

it apply weight on water which will be managed by buoyant force. Consider this force as action, now water is acted upon by reaction. So, overall force on bucket is weight of water+ reaction this equals initial weight on boy.

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