We fully submerge an irregular lump of material in a certain fluid. the fluid that would have been in the space now occupied by the lump has a mass of . (a) when we release the lump, does it move upward, move downward, or remain in place

move downward

Explanation:

The complete statement of the question is

We fully submerge an irregular 3 kg lump of material in a certain fluid. The fluid that would have been in the space now occupied by the lump has a mass of 2 kg. (a) When we release the lump, does it move upward, move downward, or remain in place

(a)

= Force of buoyancy acting on the irregular lump in upward direction

= mass of irregular lump of material = 3 kg

= mass of fluid displaced = 2 kg

Force of buoyancy on the irregular lump in upward direction is given as the weight of fluid displaced. hence

weight of the irregular lump of material is given as

Since the weight of lump in down direction is greater than the force of buoyancy in upward direction. hence the lump of material moves in down direction

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