The joule is equivalent to?
A
Kg m\(^{2}\) s\(^{-1}\)
B
Kg\(^{2}\) m s\(^{-2}\)
C
Kg m\(^{2}\) s\(^{-2}\)
D
Kg m s\(^{-1}\)
Verified Correct Answer: C.
Physical Principles & Numerical Solution
Joule as the unit of work done or energy used.
Force = mass \times acceleration
Work = Force \times Distance
Work = mass x acceleration x distance
Joule = kg \times \(\frac{m}{s^2}\) \times m
→ kg m\(^2\) s\(^{-2}\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #63078)