LIST I Complex | LIST II Colour | ||
A. | Mg(NH4)PO4 | I. | brown |
B. | K3[Co(NO2)6] | II. | white |
C. | MnO(OH)2 | III. | yellow |
D. | Fe4[Fe(CN)6]3 | IV. | blue |
A body of mass 1000 kg is moving horizontally with a velocity of 6 m/s. If 200 kg extra mass is added, the final velocity (in m/s) is: