Question

Why do you feel a resistance when an empty mug is pushed into a bucket of water?

Answer 1

It is hard to push the empty upside down mug inside the water as it has air present inside its cavity which prevents the water from entering inside the mug.But when we tilt that mug which is still completely immersed in the water by some angle then water enters inside it accompanying the formation of bubbles.....even thogh buoyant force acting would be the same in all orientations it happens

hope it helps mate