The joule is equivalent to?

By: |Published on: Jan 7|Categories: Physics WAEC| 0 comments

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

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