Question

State Archimedes Principle and explain any two of its applications. If an iron object is immersed in
water, it displaces 4kg of water. How much is the buoyant force acting on the iron object in Newtons?
(Given: g=9.8m/s)

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Answer 1

Archimede's principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the centre of mass of the displaced fluid. Archimedes' principle is a law of physics fundamental to fluid mechanics. It was formulated by Archimedes.

Answer 2

Answer:

In Newtonian physics, free fall is defined as the motion of an object where gravity is the only force acting upon it. ... A skydiver may be pulled towards earth by gravity, but they are also affected by air resistance, a force opposing their downward movement.