Question

a solid weighs 60 gf in air and 54 gf when completely immersed in water calculate the upthrust, the volume of the solid ,the relative density of the solid ​

Answer 1

Answer:

upthrust=6gf

volume of solid=6cm^3

relative density=10

Answer 2

$\huge{ \underline{ \underline \mathtt {Required \: Answer:}}}$

Given, weight of solid in air W1 = 50 gf and weight of solid in water w2 = 44 gf

(i) Upthurst = loss in weight when immersed in water = W1 - W2 = 50 - 44 = 6 gf

(ii) Weight of water displaced = upthurst = 6 gf

Since density of water is 1 g/m³, therefore volume of water displaced = 6cm³

But the solid displaces water equal to its own volume, therefore volume of solid = 6cm³.

(iii) R.D. of solid = Weight of solid in air / Weight in air - Weight in water

= W1 / W1 - W2 = 50 / 50 - 44 = 50 / 6 = 8.33