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Grade 11Mechanics

Above Qn) is from fluid mechanics.Plz help out to solve me....actually the concept behind this Q is unknown to me.....

Question image for Above Qn) is from fluid mechanics.Plz help out to

Sanju Rohra

9 Years agoGrade 11

1 Answer

Manas Shukla

9 Years ago

We see that the water divides the candle into 2 equal halves.

So total mass of candle = mass of water displaced

So clearly

density of candle is half of water.

Since that is the case , water will always divide the candle into 2 equal halves. So

if the top of candle gets burnt by 2cm/hr then candle will become 2 cm shorter on top.

So now water will again divide the candle into two equal halves , water will push the candle by 1cm.

So candle will fall by 1cm/hr.

Approve if it helps , thanks

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