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A uniform solid sphere of relative density 5 is released in water filled in a long vertical tube. Its terminal velocity acheived is V. If another uniform solid sphere of same material but double the radius is released in the same water then the terminal velocity achieved will be. A uniform solid sphere of relative density 5 is released in water filled in a long vertical tube. Its terminal velocity acheived is V. If another uniform solid sphere of same material but double the radius is released in the same water then the terminal velocity achieved will be.
force (F) = 6piRkV (V is terminal velocity) Fi/Ff = (Ri/Rf).(Vi/Vf) ..........1 (i , f denotes initial & final) F = vg(p - pw) (v is volume) F1/F2 = v1/v2 (v = 4/3 piR3 ) F1/F2 = (Ri/Rf)2 ...............2 equating 1 & 2 (Ri/Rf)2 = (Vi/Vf) final radius is double so Vi/Vf = 1/4 Vf = 4V approve if u like my ans
force (F) = 6piRkV (V is terminal velocity)
Fi/Ff = (Ri/Rf).(Vi/Vf) ..........1 (i , f denotes initial & final)
F = vg(p - pw) (v is volume)
F1/F2 = v1/v2 (v = 4/3 piR3 )
F1/F2 = (Ri/Rf)2 ...............2
equating 1 & 2
(Ri/Rf)2 = (Vi/Vf)
final radius is double so
Vi/Vf = 1/4
Vf = 4V
approve if u like my ans
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