Question

★★★★____________________________★★★★Explain in easy language.........★★★★
________________________________________________________A ball filled with air has volumee of 500cm3.calculate the minimum force applied by a child to put it completely inside the water

♠No spam♠

Answer 1

Volume, V = 500 cm3

m =  ρ x V

m = 1.000×10^3 kg/m3 x 0.00050 m3
m = 0.50 Kg

By Archimedes’ principle, the weight of water displaced is mg , so the buoyant force is:

Buoyant Force, F = m x g
= 0.50 x 10  (g = 10)
F = 5 N

Answer 2

$\bold {\huge {Solutions:-}}$



____________________________________
A ball filled with air has volumee of 500cm3 . calculate the minimum force applied by a child to put it completely inside the water.
____________________________________




volume of balloon (v)= 500cm³ 


density of water = 1 g/cm³

Buoyant force = pvg

pv = 1 g/ cm³×500cm³ = 500 g = 0.5kg

Buoyant force = pvg = 0.5 × 10 = 5 N


So,
the child needs to apply$\bold {\underline {5N~force}}$ to put it completely inside water.