1. A steel ball of 3mm diameter was dropped into a 0.5m deep container filled with motor-oil. Assuming that the ball sinking speed is the same from the moment it

hits the oil surface, calculate how long it will take for the ball to sink to the bottom of the container? Note that the density of Steel is p = 7850 kg/m' and the properties of oil are taken from Table 1.1. Also calculate the Reynolds number%3D