EBK ENGINEERING MECHANICS
15th Edition
ISBN: 9780137569830
Author: HIBBELER
Publisher: VST
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A metric ton is defined as 1000 kg, or 2.200 × 10³ lb. An English ton is defined as 2000 lb, or 2.000 × 10³ lb. What is the mass difference between a metric ton and English ton expressed in pounds?
1. What is the weight in newton of an object that has a mass of: (a) mı, (b) m2, (c) m3? Express
the result to three significant figures. Use an appropriate prefix.
Given:
Units Used:
Mg = 10° kg
m1 = 10 kg
mN =
10 N
m2 = 0.5 gm
kN = 10° N
m3 = 4.50 Mg
Elements of the lower arm are
shown in the figure. The weight of
the forcarm is 5 Ib with mass center
at G if the T= 0 N. Determine the
combined moment about the elbow
pivot (o) of the weights of the fore
arm and the sphere, from the
following answers which of them is
5 Ib
8 lb
13
correct:
M= 128.6 Ib.in
M= 134 Ib.in
M= 107.441 Ib.in
M=0 Ib.in
M=144 Ib.in
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