m = mg(5, 'kg')
a = mg(9.82, 'm/s2')
f = m * a
print(f, f == mg(49.1, 'N'))
u = mg(70, 'km/h')
g = mg(9.82, 'm/s2')
s = u ** 2 / (2 * g)
print(s, s > mg(10, 'm'))
How to pythonically tuple magnitude and physical units?