help me with this physics ---- dimensional formulae for some physical quantities?

Question

hi
tanx 4 ur interest
viscocity = force/area x velocity gradient
the dimensional formulae would be M1L-1T-1
TEACH ME HOW TO DERIVE IT.
thanking u
tom

Answer 1

mass=M,length=L,time=T.force=mass *acceleration=M*L*(T^-2).
area=L^2
velocity gradient=velocity/lenth
=L(T^-1)/L=T^-1
hence the final result is obtained by mere substitution.

Answer 2

Velocity = distance/time where distance is in length so
Velocity = LT-1 ===> M0L1T-1
Simillarly Force = Mass X Acceleration
and etc so you can derive these

Answer 3

F = [MLT^-2]

A = [L^2]

dv/dx = [T^-1]

Now just multiply and divide