Mention the MKS and GGS unit of work and define them and also write the dimensional formula of work .

Explanation

MKS unit of work `("kg m"^(2))/(s^(2))` .It is also known as Joule .
Joule : Work done is said to be one joule, " When a force of one Newton actually moves a body through a distance of one metre in the direction of applied force . "
` :. 1 "Joule " = 1 Nm = (1 " kg m"^(2))/(s^(2))`
CGS unit of work is `(" g cm"^(2))/(s^(2))` .It also known as erg .
Erg : Work daone is said to be one erg . " When a force of one day dyne actually moves a body through a distance of one cm in the direction of applied force " .
` :. 1 "er = 1 dyne cm = 1 " ("g cm"^(2))/(s^(2))`
SI unit of work is Joule (J) : J = Ns
Dimensional formula of work is `[M^(1)L^(2)T^(-2)]` [ Joule = `10^(7)` erg]
Some practical units of work /energy shown in table (in Joule )