Twe tesaninal velocity of a mberical partale folling tusugh t fund is giva by the v4=3CpP4g(pp)D1 Where The coal perticle deatity . =1100kgm ? Deneity of water p=964.6ksml C0= the coelfsoitit of drur D. - the duenter ot the ocol paricle (m) ) The coeffeciter of drut ia a fimetion of the particle fierbolds aumber and is ziven thy CD=(Re21)(f+0.14Re3)ReHD1,.