A small spherical ball of radius 0.1mm and density 104kgm-3 falls freely under gravity through a distance h before entering a tank of water. If, after entering the water the velocity inside water, then the value of h will be_________ m.
(Given g = 10 ms-2, viscosity of water = 1.0 × 10-5 N-sm-2).
A small spherical ball of radius 0.1mm and density 104kgm-3 falls freely under gravity through a distance h before entering a tank of water. If, after entering the water the velocity inside water, then the value of h will be_________ m.
(Given g = 10 ms-2, viscosity of water = 1.0 × 10-5 N-sm-2).
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1 Answer
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Since velocity does not change, so acceleration will be zero.
mg = FB + Fv
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