The joule is equivalent to?

Assessment: WAEC SSCE - Physics - 2022 (Objective) Subject: Physics

Question 1 Report

Kg m

^{2}

s

^{- 1}

Kg

^{2}

m s

^{- 2}

Kg m

^{2}

s

^{- 2}

Kg m s

^{- 1}

Answer Details

Joule as the unit of work done or energy used.

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

Joule = kg × $\frac{m}{s^{2}}$ × m

→ kg m $^{2}$ s $^{- 2}$

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