Question

what do you mean by the term upthrust of a fluid? describe an experiment to show its existence

Answer 1

upthrust is a force exerted by fluid on object when it is immersed in it we can prove it as a ball floats on water as upthrust is more than the force applied by the ball this force is often termed as buoyant force

Answer 2

The upward force exerted on a body by the fluid in which it is submerged, is called the upthrust for buoyant force.

hope it helps you....