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5. A helicopter scoops a load of water out of a lake, to dump on a forest fire. The helicopter exerts 6480
N of force on the water while rising high enough to fly over a mountain. If the helicopter does 1.62 x
10%) of work on the water while lifting it, how high does it lift the water.

Respuesta :

Answer:

h = 250 m

Explanation:

Given that,

The helicopter exerts 6480  N of force on the water while rising high enough to fly over a mountain.

The helicopter does [tex]1.62\times 10^6\ J[/tex] of work on the water lifting it.

We need to find how high does it lift the water. Work done is given by :

[tex]W=Fh\\\\h=\dfrac{W}{F}\\\\h=\dfrac{1.62\times 10^6}{6480}\\\\h=250\ m[/tex]

So, it can lift the water to a height of 250 m.

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