![Inertia adjustments for human torso tattoo Inertia adjustments for human torso tattoo](/uploads/1/2/5/5/125524745/571662866.jpg)
The moment of inertia of the human body about an axis throughits center of mass is important in the application of biomechanicsto sports such as diving and gymnastics. We can measure the body'smoment of inertia in a particular position while a person remainsin that position on a horizontal turntable, with the bodys centerof mass on the turntable's rotational axis. The turntable with theperson on it is then accelerated from rest by a torque that isproduced by using a rope wound around a pulley on the shaft of theturntable. From the measured tension in the rope and the angularacceleration, we can calculate the body's moment of inertia aboutan axis through its center of mass.
(Figure 1)
(Figure 1)
Part A
The frequency of human, manual adjustments in balancing an inverted pendulum is constrained by intrinsic physiological factors Ian D Loram, 1 Peter J Gawthrop, 2 and Martin Lakie 3 1 Institute for Biophysical and Clinical Research into Human Movement, Manchester Metropolitan University, Alsager ST7 2HL, UK. Part of your body is actually still in a sleep state. Sleep inertia costs you. Sleep inertia typically lasts 15-30 minutes, but can last as long as 4 hours. During this period, you are at a reduced level of capacity and may have trouble doing the simplest of everyday actions.
The moment of inertia of the empty turntable is 1.5 kg?m2. Witha constant torque of 2.5 N?m, the turntableperson system takes 3.0s to spin from rest to an angular speed of 1.0 rad/s. What is thepersons moment of inertia about an axis through her center of mass?Ignore friction in the turntable axle.
The moment of inertia of the empty turntable is 1.5 . With aconstant torque of 2.5 , the turntableperson system takes 3.0 tospin from rest to an angular speed of 1.0 . What is the personsmoment of inertia about an axis through her center of mass? Ignorefriction in the turntable axle.
![Torso Torso](http://slideplayer.com/3200597/11/images/59/Inertia+and+Mass+Inertia+Mass.jpg)
2.5 kg?m2 |
6.0 kg?m2 |
7.5 kg?m2 |
9.0 kg?m2 |