Question

pls answer it's urgent i will mark your answer brainliest
a solid weighs 10 N in air and 8.6 N when immersed in water. calculate density of solid..​

Answer 1

Answer:

Buoyancy force = 10 - 8.6 = 1.4 N

Since

$F_b = \rho \: Vg = \\ 1000 \times V \times 10 = 1.4 \\ v = 1.4 \times {10}^{ - 4}$

Now density

$\rho(solid) = \frac{m}{V} = \frac{W}{gV} = \frac{10}{10 \times 1.4 \times {10}^{ - 4} } = 7142.85 \: \frac{kg}{ {m}^{3} }$