Question

From a dam,water is pouring down at the rate of 150 kg/s, on the blades of a turbine.if a ball dropped from the same dam takes 2✓5 s to hit the turbine,then the power delivered to the turbine is approximately equal to

Answer 1

Hi friend,

First we find the height: √ h = gt2/2 = 10 · (2 5)2/2 = 100 m Now we can find power: N = ∆mgh = 150 · 10 · 100 = 1.5 · 10^5 W = 150 kW.

Hope this helped you a little!!!