Question

if a body weigh 20N in air and 8N in water, then what will be the upthrust?​

Answer 1

Answer:

Since the fluid is denser than water, it then tends to “oppose” the sinking of the body by the 1.5:1.0 ratio, been 1 the density of water. It will then push the body up 1.5 times the water water push (1.5*2=3N). So weight is 10–3=7N