A circular well of diameter \( 2 \, \text{m} \) has water up to the ground level. If the bottom of the well is at a depth of \( 14 \, \text{m} \), the time taken in seconds to empty the well using a \( 1.4 \, \text{kW} \) motor is (Acceleration due to gravity = \( 10 \, \text{m/s}^2 \))