2. A machine part is made up of two pieces with centers of mass shown in the figure below. Which point could be the center of mass for the entire part? O B. Center of gravity of piece 2 D. Center of gravity of piece 1 a) А. b) В. с) С. d) D. С.
2. A machine part is made up of two pieces with centers of mass shown in the figure below. Which point could be the center of mass for the entire part? O B. Center of gravity of piece 2 D. Center of gravity of piece 1 a) А. b) В. с) С. d) D. С.
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This a not graded assignment, it is a question on a practice exam.
Please do question 2.
Transcribed Image Text:1. Four very lightweight disks of equal radii each have three identical heavy marbles glued to them
as shown in the figure below. Rank in order, from largest to smallest, the moments of inertia of
the disks about the indicated axis (shown as a black dot).
Axis
a) Ip> IB > Ic > IA
b) Ic> IA > Ip > IB
c) Ic> IB > Ip > Ia
d) IB > IA > Ip > Ic
e) Ip> IA > Ic > IB
A
В
D
2. A machine part is made up of two pieces with centers of
mass shown in the figure below. Which point could be the
center of mass for the entire part?
O B.
Center of
gravity of
piece 2
D.
Center of gravity
of piece 1
а) А.
b) В.
с) С.
d) D.
С.
3. Determine the magnitude of the net torque acting on the
bar shown in the figure at right. The axis is indicated
by the dot. (use different #'s?)
10 N
8.0 N
a) 10 m·N
b) 7.5 m-N
c) 6.0 m·N
d) 2.5 m:N
e) 2.0 m·N
25 ст
75 cm
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