[" 41.A small spherical ball falling through viscous medium "141." Frive an "],[" of negligible density has terminal velocity v.Another "|],[" ball of the same mass but of radius twice that of the "|],[" earlier falling through the same viscous medium will "|],[" have terminal velocity."],[[" (1) "v," (4) "v/4],[" (3) "v/2," (4) "4v]]