Question

Derive the s.I unit of joule (j)in terms of fundamental units

Answer 1

Explanation:

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Answer 2

Answer:

J = Kg $m^{2}$ $s^{-2}$

Explanation:

Joule is a unit of work.

so, Work = Force x Displacement

               = m x a x s ---------------[ F = ma]

               = m x V / t x s                       m  = Mass  

               = m x s / t x t  x s                  s = Displacement  

               = m x s^2 / t^2                      t = time

               = m . s^2 . t^-2                       v = Velocity

Unit of work = Joules (J)

Because,

- mass (m) = kg

- Displacement = Meter (m)

- Time (t) = Seconds

J = Kg . m^2. s^-2