Page 125 - WCS - Electrical
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WORKSHOP CALCULATION & SCIENCE  - CITS



           Check the consitency of dimensional formula of Force.

           Solution
           Force = ?
           Mass = (M)
           Acceleration = (LT )
                           -2
           Force = mass x acceleration
           LHS should be equal to RHS.

           We know Dimensional formula for force = M L L
                                                  1 1 -2
           Mass = M 1
           acceleration = Velocity
                           time

           Velocity = Distance = L
                       time    T
           Substitute the dimensional formula for velocity in equation
           Acceleration =      L       =  L T -2
                                   1
                            T x T

           Force = Mass x acceleration
                        (M) (L T )
                        1
                          -2
           M L T  = M L T -2
                     1 1
             1 1
                -2
           Problems
           1  Derive dimensional formula for acceleration.
           2  Derive dimensional formula for density.
           3  Derive DM for pressure.
           4  Derive DM for work.
           5  Derive DM for stain.



































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                                            CITS : WCS - Electrical - Exercise 10
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