Question

3. If water is flowing in a pipe with speed 2 m/s then its kinetic energy per unit volume is
(1) 500 J/m2
(2) 1000 J/m
(3) 1500 Jim
(4) - 2000 J/m2
h inus liquid Which of the following cu​

Answer 1

Answer:

I think 1000j/m it's my guess

Answer 2

kinetic energy per unit volume is $2000 J/m^3$

Explanation:

The kinetic energy is given as

$K=\frac{1}{2}mv^2$

Here, m is the mass and v is the velocity.

And we know that,

Mass(m) = density (d) x volume (V).

so kinetic per unit volume is given as

$\frac{K}{V} =\frac{1}{2}d\times v^2$

Given v = 2 m/s and we know density of water d = 1000 kg/m^3

Substitute  the values, we get

$\frac{K}{V}=\frac{1}{2}\times1000\times(2)^2$

$\frac{K}{V}=2000 J/m^3$

Thus, the kinetic energy per unit volume is $2000 J/m^3$

#Learn More: Kinetic energy

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