Question

A copper weight weighs 268 N in air and displaces an amount of water weighing 30. N . What is the weight of the copper measured in water?

Answer 1

238 N

Step-by-step explanation:

Archimedes principle states that every body submerged in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the body:

`W_I=W-W_f`

Here,
`W_I` is the immersed weight of the copper, and
`W_f` is the weight of the displaced water. Due to this, the copper has a weight when immersed in water of:

`W_I=268N-30N\\W_I=238N`