Find the period of the leg of a man who is 1.83 m in height with a mass of 67 kg. The moment of inertia of a cylinder rotating about a perpendicular axis at one end is ml2/3. sec The pace of normal walking (3.0 mi/hr) is close to the natural frequency of the leg because the most efficient frequency to "drive" a system is the natural frequency. It takes less effort to walk at this rate.

1.54 s

Explanation:

Considering that the legs constitute 16% of the total weight of the man then mass,

The legs also constitute 48% of his height hence

The moment of inertia of a cylinder rotating about a perpendicular axis at one end is hence

We also know that the period is given by

Here, h=0.5H= 0.5*0.8784=0.4392 m

Taking g as 9.81 kg/m2 then

that would be because of both gravity and friction. so     c