Question

when an aluminium object is immersed in water it displaces 5 kg of water. How is the buoyant force acting on the aluminium object in newtons ? [g=10m/s2]

Answer 1

Buoyant force = mass of water dispered or mass of object submerged × Gravitational Acceleration

= 5 × 10

= 50 N

Hope it helps!

Answer 2

The buoyant force acting on the aluminium object is 50 N.

Explanation:

Given mass of the water displaced, m = 5 kg.

Acceleration due to gravity, g = 10 m/s^2.

As per Archimedes principle, the Buoyant force applied on the object is equal to the weight of the water displaced, i.e

Buoyant force, F = weight of the water displaced(W=mg)

Substitute the given values, we get

$F = 5kg\times10m/s^2$

F = 50 N.

Thus, the buoyant force acting on the aluminium object is 50 N.

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