00:01
A body of dimensions 2 .7, 3 .8 and 2 .5 meter weights 2 ,500 newton in water find its weight in air.
00:12
So suppose this is a body and this is water.
00:19
It is submerged in water and it is connected the spring scale.
00:27
Okay, so the tension in this spring scale give us the weight.
00:35
Of body in water.
00:37
So this is given to us 2 ,500 newton.
00:43
Now we know that there will be a gravitational force in the downward direction which is mg and we know that this will be the weight in air.
00:54
Now when it is in the water, beyonce force will act in the upward direction and this force is equals to volume of body into density of water, in the water, in the air.
01:08
Into g.
01:11
So, we know that net force on this body at this time must be equal to zero...