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0 votes
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in Physics by (32.0k points)

A ball of radius 10-4 m and density 105 kg/m3 is dropped from a height h into water (viscosity = 9.8 x 10-6 Pa–s) such that after falling into liquid, its speed does not change. Find the approximate value of h. 

(1) 2200 m 

(2) 2350 m 

(3) 2470 m 

(4) 2520 m

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1 Answer

+1 vote
by (32.9k points)

Correct option is (3) 2470 m 

Velocity just before entering water = Terminal velocity

Velocity just before entering water

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