History Bookmarks People Window Help chegg com 874031708offset-next h -Momentum2

Question

History Bookmarks People Window Help chegg com 874031708offset-next h -Momentum2 Problem845: Changing Your Center of Mass - Enhanced-with Solution e previous 11 of 12 Problem 8.45: Changing Your Center of Mass. Enhanced - with Solution Part B erter of mass of this leg. rolah·tothe hippin ifts My edan ded Find the z-ooordinate of the Express your answer to the nearest integer To keep the calaulations fairly simple, but reasonable, we shall model a human leg that is 920 cm long (measured from the hip joint) by assuming that the upper leg and the lower leg which indludes the fool) have equal lengths and hat each of them is uniform For a 70.0 kg person the mass of the upper leg is 8.65kg, whille that of the lower leg including the foot) is 5.05 kg. Take te ais to be directed horizontaly ad he yaxis to be directed verically downward My Answers Give up You may want to review(Lg 241:242) Incorrect; Try Again; 4 attempts remaining may want to view a Video Tutor Solution of Part C Find he z-coordinate of the center of mass of this leg, relative to the hip joint, id it is bent at the knee to m a fight angle with the upper leg (which parallel to the ground). Express your answer to three significant figures MacBook Pro 80 88s 5 8 0

Explanation / Answer

(B) x_cm = (m1 x1 + m2 x2) / (m1 + m2)

when fully extendend.

x_cm = ( (8.65 x 92/4) + (5.05 x (92/2 + 92/4))) / (8.65 + 5.05)

x_cm = 40 cm ....Ans

(c) x_cm = ((8.65 x 92/4) + (5.50 x 92/2)) / (8.65 + 5.05)

x_cm =31.5 cm

(d) y_cm = (8.65 x 0) + (5.05 x - 92/4) / (8.65 + 5.05)

= - 8.5 cm

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

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