Derive a relationship between S.I. and C.G.S. unit of work

1. Derive a relationship between S.I. and C.G.S. unit of work.
2. A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of force. What should be the value of θ to get the maximum positive work?

Answer

(i) 1 J = 1 N x 1 m

1 J = 10⁵ dyn x 100 cm

1 J = 10⁷ ergs

(ii) 0°