Question

If V =a)t+ bt^3 where V is velocity and t is t time. The dimensional formulae of a and b are

Answer 1

V=at+bt^3
V =LT^-1
LT^-1= at
LT^-1= a× T
a=LT^-2

V = bt^3
LT^-1= b T^3
b = LT^-4