the weight of any object decreases inside water. why?
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Simple answer would be BUOYANCY. An object in water looses "weight" because the water column beneath it pushes the object upwards.
Now an object in water experiences a downward pull of gravity we call weight but the water follows newtons third law and exerts an upward force, which pushes the object upwards.
Now the water surrou ding the object also applies pressure but finally, the vector sum of the forces acting upwards reduces the downward pull of gravity, hence making the weight of the object less.
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