Question) If energy e velocity v, force f be taken as a fundamental quantity then what are dimensions of mass?
Ans. Let the dimensional formula of mass is M = EaFbVc
?E=ML2T-2? ,? F =MLT-2? , V=LT-1
on putting these
??? M = Ma+b?L2a+b+c?T-2a-2b-c
equating powers ,we get
?a=1 , b=0, c=-2
?dimensional formula of mass= E1.F0?V-2
?E=ML2T-2? ,? F =MLT-2? , V=LT-1
on putting these
??? M = Ma+b?L2a+b+c?T-2a-2b-c
equating powers ,we get
?a=1 , b=0, c=-2
?dimensional formula of mass= E1.F0?V-2