Question

Derive SI unit of joule in terms of fundamental units.

Answer 1

first of all as we know joule is the SI unit of energy so the fundamental units of energy and joules will be the same...

as energy in fundamental quantities is [m1l2t-2]

in SI units m(mass)=KG,  l(distnace)=m,t(time)=seconds

so joule in SI units will be=KG-m2/s2

Answer 2

i thought joule is the SI unit of work .