The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is__________________?
(A) Vs = 418 (Gs – Gw) d [(3T + 70)/100]
(B) Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
(C) Vs = 218 (Gs – Gw)d² [(3T + 70)/100]
(D) Vs = 218 (Gs – Gw)d [(3T + 70)/100]

