Question

The SI unit of work is joule. It is expressed in terms of mass, length and time as:

विकल्प

• kg m²s⁻³

• kg m³s⁻²

• kg² m²s⁻²

• kg m²s⁻²

Answer 1

kg m²s⁻²

Explanation:

Work is force multiplied by displacement. Since force has the unit kg m s⁻² , the unit of work is kg m²s⁻².