Saved Bookmarks
| 1. |
A pump raises 50 litre of water through a height of 25 m in 5 s. Calculate the power of the pump required. |
|
Answer» Power = work done/ time mass of WATER = 50kg as density of water is 1 kg/litre or 1g/ml now in this CASE work done = change in potential energy work done = mgh - 0 = 50 * 10 *25 J = 12500 J power = 2500 W |
|