Respuesta :

Answer:

Proof in explanation.

Explanation:

a.

Pa is the unit of pressure and pressure is given as:

[tex]Pressure = \frac{Force}{Area}[/tex]

The units are:

[tex]Pa = \frac{N}{m^2}[/tex]

N is itself a derived unit. Hence, it is proven that Pa is a derived unit.

b.

Pa is the unit of work and work is given as:

W = (Force)(Displacement)

The units are:

J = (N)(m)

N is itself a derived unit. Hence, it is proven that J is a derived unit.