The body mass index (bmi) is a measure of relative
size commonly used to assess how much one's
body weight differs from what is healthy or
desirable. bmi = mass (height)2 in sl units.
what is the bmi of a 75.0 inch tall man with a weight of 200lbs?

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.