Question
Derive the relation between different units of work.
Solution
Relation between joule and erg:
1 J = 1 Nm

Relation between kg-m and g-cm:
Relation between Joule and kg-m:
Relation between erg and g-cm:
1 g–cm = 980dyne cm
= 980 erg.
1 J = 1 Nm


Relation between kg-m and g-cm:
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Relation between Joule and kg-m:

Relation between erg and g-cm:
1 g–cm = 980dyne cm
= 980 erg.