Chapter 14 Angular Me 42. In the act of walking, the arms swing back and forth t

Question

Chapter 14 Angular Me 42. In the act of walking, the arms swing back and forth through a 45° each second. Using the following data, and the data in Table culate the average force on the shoulder due to the centrifugal mass of the person is 70 kg, and the length of the arm is 90 cm that the total mass of the arms is located at the midpoint of the hrough an angels 4 lain Table 4.c. centrifugal force. The 600 cm. Assume olla la la la la la la la la the wall cylinder entrifugal r and the What is the Elasticity an of Materials City of the the arms br this phe- he pedestal bntal, What me that the ength. So far we have considere will now examine the e is applied to a body, th the force is applied, ti Elasticity is the prope shape after the force ever, the body is dis restored after remo of a runner will review briefly effects of forces a

Explanation / Answer

Expression for centrifugal force,

F = m²r

Here, F is force, m is each arm, is angular speed, and r is radius ( length ) swept by arm.

Given that { Forearms and hands have 0.06 fraction of the total body weight } . It implies that, the mass of each arm.( mass of boh arms is 1/16 the of body mass ) = (70kg * 0.06/2)

Each arm swings through 90º = ½· radians each second.

Therefore, the centrifugal force is

F = (70kg * 0.06/2) * (½· rad/s)² * (0.9m / 2)

F = 2.3 N

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.