Unformatted text preview: 118 Chapt. 13 Equilibrium and Elasticity c) Why is there a center of mass, Alex? d) Why is there a center, Alex? e) Why is there a universe, Alex? 013 qmult 00400 1 3 5 easy math: simple beam torque calculation 4. An object of mass 1 kg sits on a horizontal beam at 1 m from a pivot point. What is the torque about the pivot point that the weight of the mass causes? a) 1 Nm. b) 2 Nm. c) 3 Nm. d) 4 Nm. e) 9.8 Nm. 013 qmult 00500 2 3 1 moderate math: torque calculation with a beam 5. Two objects are sitting on a uniform horizontal beam. The beam rests on a pivot at its center of mass. The beam is free to rotate about the pivot. Object 1 sits on the lefthand side of the pivot at a distance ℓ 1 from the pivot. Object 2 sits on the righthand side at a distance ℓ 2 . Given m 1 = Nm 2 , what is ℓ 2 in terms of ℓ 1 ? HINT: Draw a diagram. a) ℓ 2 = Nℓ 1 . b) ℓ 2 = ℓ 1 /N . c) ℓ 2 = ℓ 1 ....
View
Full
Document
This note was uploaded on 11/16/2011 for the course PHY 2053 taught by Professor Buchler during the Fall '06 term at University of Florida.
 Fall '06
 Buchler
 Physics, Center Of Mass, Mass

Click to edit the document details