Question

an object weighs 10N in air . when immersed fully in water it was only 8N. the weight of water displaced by an object will be
a.2N
b.8N
c.10N
d.12N​

Answer 1

Answer:

By Archimedes principal we know that weight displaced by object will be equal to buoyancy force .

Now just balance forced upward and downwards

$10 - f = 8 \: \implies \: f = 2 \:$