Question

the velocity of a particular​ v=a+b/t +ct sqauare where a,b,c are constants and t is time the dimensional formula for b

Answer 1

We have,             v              =             at   +  b/(t + c)

Here,                    c is added by t , therefore,  c  =  [T]

Again                     at     =   LT–1

Therefore,          a    =    [LT–1]/T =  LT–2

And                        [b]/[T]  =    [LT–1]

Therefore,          [b]     =   [L]