ritashrestha2078
Answered

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It is easier to pull a bucket of water from the well until it is inside the water but difficult when it is out of water, why??
Anyone plz tell​

Sagot :

webkai5141

Answer:

Upthrust due to water is greater than that of air. Upthrust exerted by water decreases weight of body. Hence, it is easier to pull a bucket of water from the well until it is inside the water but difficult when it is out of water.

Explanation:

BrainLifting

Answer:

When the bucket is placed inside the well and is filled with water, the water inside the well exerts an upward Buoyant Force on the bucket, being a liquid. Hence, the force exerted by gravity on the bucket as well as this buoyant force act in the opposite direction, reducing the net force on the bucket. Due to which, it is easier to lift the bucket submerged in water.

On the contrary, there is no buoyant force acting on it when it is hanging in the air, due to which we need an upward muscular force that counter-effects this gravitational force on the bucket, in order to lift it. Hence, it's a bit difficult to draw a bucket filled with water, in air.

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