A problem from Hydraulic

Ali Asked:

“a stone of [wiki]density [/wiki] 4gm/cm3 is dropped freely in a liquid of density 0.8 gm/cm3 .what will be the acceleration of the sinking stone?”

Ans:

the force acting are

weight =mg= downwards (where is the density of the body)

[wiki]Buoyant force[/wiki] =

SO, THE NET DOWNWARD [wiki]FORCE [/wiki]IS

Therefore, acceleration = net downward force / mass

=
=

Now substitute the values and calculate

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