Section: Fluid Mechanics | Marks: 2
Linked Answer Q.25 & Q.26: A motorboat is cruising in a lake (see figure below) at a uniform speed of $10\text{ m/s}$. A $180\text{ kW}$ pump sucks water at a rate $1\text{ m}^3\text{/s}$ through an inlet pipe in the front and pumps it out with a velocity of $10\text{ m/s}$ with respect to the lake, through an outlet pipe at the rear. The total drag on the boat is
- A. 30 kN
- B. 20 kN
- C. 10 kN
- D. Zero