Question

A plastic block of volume V is made out of a material of density p is floating in a liquid of density o contained in a beaker. During the free fall of
the beaker, the upthrust on the block will be
Equal to the Vg{
p-}
Slightly more than the weight of the block
Slightly less than the weight of the block
Zero
​

Answer 1

Answer:

A plastic block of volume V is made out of a material of density p is floating in a liquid of density o contained in a beaker. During the free fall of

the beaker, the upthrust on the block will be

Equal to the Vg{

p-}

Slightly more than the weight of the block

Slightly less than the weight of the block

Zero

Answer 2

Answer:

A block of material has a density ρ  

1

​  

 and floats three-fourth submerged in a liquid of unknown density. Show that the density ρ  

2

​  

 of the unknown liquid is given by ρ  

2

​  

=  

3

4

​  

ρ  

1

​  

.

ANSWER

Weight=upthrust

V  

ρ  

1

​  

 

​  

g=(  

4

3

​  

V)ρ  

2

​  

g

∴   ρ  

2

​  

=  

3

4

​  

ρ  

1

​  

Explanation: