l (distance) = m
t (time) = s
m (mass) = kg
a (area) = m^2
v (velocity) = m/s
(density) = kg/m^3
g (gravity) = m/s^2
F (force) = kg*m/s^2
E (energy) = (kg*m^2)/s^2
P (power) = (kg*m^2)/s^3