Question

work done by 1kg of water when it falls through the height of 1000cm is​

Answer 1

Work done=Fs

=mas=1×9.8×10m=98J

{F=ma}

Answer 2

Given:

Mass of Water= 1kg

Height from which water Fallen= 1000cm

To Find:

Work done by water while falling

Solution:

We know that,

⟼ 1000cm= 10m

⟼ Force= Mass×Acceleration

⟼ Work= Force×Displacement

Here,

Displacement(d) is 10m

Acceleration due to gravity is 9.8m/s²

So,

↬ F= ma

↬ F= 1×9.8= 9.8N

↬ Work done= F×d

↬ Work done= 9.8×10

↬ Work done= 98J

Hence, the work done by the water is 98J.