2022 Spring, PHYS 211 (cook)
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2022 Spring, PHYS 211 (cook)
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Tuyen Tran (Student - section: 003)
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Course Contents >> ... >> HW Bonus » Find the z-coordinate of the center of mass of the box
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(hrw8c9p5) A cubical box, open at the top, with edge length 68 cm, is constructed from metal plate of uniform density and negligible thickness (see the figure). Find the z-coordinate of
the center of mass of the box ( cm).
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Kunduz · Accepted Answer

2
K
H
n
>y
k D
K L
20
edge length = 68 cm
.
Acc. to formula for Centre of mass of all the
.
plates
mirit + m₂ 82 + Mz8z + m 484 + moms
mara
=
rcom
3
mit m2 + Mz + marms
+
Also
m = m₂ = Mz = m = ms = m)
4
thom
maxbo W/BV
8, = %= 8z = 84 = 68 = 34 (2-coordinate of middle
r2
of plate)
2 coordinate =
m (34) x 4 + m (0)
5 m
136 m
5 m
27.2 km
2 coordinate =

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