Question

The weight of a piece of stone in air is 120N and its weight in water is 100N. calculate the buoyancy experienced by the stone?
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Answer 1

Explanation:

Buoyancy = weight of stone in air - weight in water = 120N−100N=20N.

Answer 2

Answer:

The stone experiences buyoncy to the extent of 20N.

Explanation:

The buoyancy is calculated as,

$W=W_a-W_w$      (1)

Where,

W=the buoyancy experienced by the stone

$W_a$= the stone weight in the air

$W_w$=the stone weight in water

From the question we have,

The stone's weight in the air($W_a$)=120N

The stone's weight in the water($W_w$)=100N

We get the following results by entering the data into equation (1):

$W=120-100$

$W=20N$

Hence, the stone is buoyant to the extent of 20N.

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