Question

a cubical block of side 1.2 cm is completely immersed in water. Find the buoyant force acting on the block(density of water— 1000kg/m^3, g—10m/s^2
Please don't give unnecessary answers​

Answer 1

Answer: 0.01728 N

Explanation:

The byouyant force is force required to displace amount of liquid by the body

Hence, According to question, the body is completely displaced

V=a³=1.2×1.2×1.2 cm³ = 1.728 cm³ = 1.728 × 10‐⁶ m³

F=Vdisplaced×Density of water×g

= 1.728 ×10‐⁶ ×1000×10

= 17.28milliNewton

= 0.01728 Newton