The joule is equivalent to?

A. Kg m² s^–1
B. Kg² m s^–2
C. Kg m² s^–2
D. Kg m s^–1

Correct Answer:

Option C = Kg m² s^–2

Explanation

Joule as the unit of work done or energy used.

Force = mass × acceleration
Work = Force × Distance
Work = mass x acceleration x distance

Joule = kg × m/s² × m

→ kg m² s⁻²