We fully submerge an irregular lump of material in a certain fluid. The fluid that would have been in the space now occupied by

Question

Pani-rosa

1 month ago

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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

Physics

1 answer:

Ostrovityanka [3.2K] · Answer 1 · 2026-04-07T13:07:18+03:00

Answer:

the lump descends

Explanation:

The full articulation of the query is

Upon fully submerging a 3 kg lump of material in a certain fluid, the fluid that would have occupied the space now filled by the lump weighs 2 kg. (a) When released, does the lump float up, sink, or remain steady

(a)

$F_{b}$ = Buoyant force acting upward on the lump

$M$ = mass of irregular lump = 3 kg

$m$ = mass of fluid displaced = 2 kg

The upward buoyant force on the lump is given by the weight of the displaced fluid, thus

$F_{b} = mg = (2) (9.8) = 19.6 N$

the weight of the irregular lump of material is represented as

$W = mg\\W = (3) (9.8)\\W = 29.4 N$

Given that the weight of the lump downward exceeds the upward buoyant force, the lump will indeed descend