Q23. Small water droplets of radius 0.01 mm are formed in the upper atmosphere and falling with a terminal velocity of $10 \mathrm {~cm} / \mathrm { s }$. Due to condensation, if 8 such droplets are coalesced and formed a larger drop, the new terminal velocity will be $\_\_\_\_$ $\mathrm { cm } / \mathrm { s }$.